WIMBLEDON, London -- Its the pick of the last-16 matches in the mens singles as the hero of the home crowd meets the villain of popular perception. ESPNs Darren Cahill, who has worked with Andy Murray and coached Andre Agassi and Lleyton Hewitt, and world No.21 Feliciano Lopez, who has hit with the Briton many times and was beaten by Nick Kyrgios in the last round, identify the potential pivotal points:Emotional controlNick Kyrgios demeanour on court could keep body language experts occupied for hours but when he finished his victory against Lopez on Sunday he was business-like and relaxed -- and played his best tennis of the tournament.There was still a code violation for time wasting and the Australian felt he needed to apologise afterwards for using the word retard when berating his team on Saturday night. Cahill insisted he just has to get the balance right.I dont think anyone wants him to be perfect because hes a great personality. He brings a lot of that firepower on to the court, the Australian coach said.We just want him to get better and learn from his experiences. He seems to be doing that and his tennis is improving and becoming more consistent. He is now beating the guys he should be and putting himself in the position where he can challenge the top guys.Players boxMurray and Kyrgios have been in the habit of taking out all their frustrations on the figures in their corners during matches. The 21-year-olds team dont seem to be able to do much right in his eyes when hes playing, and hes admitted he is a pest, so how much they will be able to influence his chances is hard to say.Murray was also getting increasingly vocal towards his players box under previous coach Amelia Mauresmo but he has calmed down under Ivan Lendl and Cahill claimed he was feeling an important benefit from the change which could make a difference.Amelie did a marvellous job at a difficult time after Andys back surgery and got him to finals, Cahill said. Ivan coming at this point, he looks hungry and focused again. Hes enjoying his tennis and training.To me its a 1-2 percent X-factor with Ivan. The player feels good hearing the voice that he knows hes played his best tennis with, had Grand Slam success with, and if you walk a little taller and stand a little prouder in the big moments it makes a difference at that level.ServeLopez says that Murray has improved his second serve a lot lately but that is an area which experts have frequently said opponents should target.Andy does give you looks on his serve but you have to stay close enough in sets to put that pressure on him, Cahill said, adding: Nicks really going to have to take care of his own serve.Murray has won 80 percent of points on his first serve at these championships while Kyrgios has only garnered points from 69 percent.Lopez said he was impressed with the ATP tour No.18s serve, but he will have his work cut out to make it pay against Murray, who the Spaniard said was one of the best defenders in the game -- he returns unbelievably.ConcentrationMurrays weakness here could be the lure of dreaming about the prize that could await him at Wimbledon. With Novak Djokovic out, the Briton is the favourite and will have to prevent his mind from wandering if he takes an early lead.Nick is a big obstacle to Murray for sure, said Cahill. But there are a lot of players in that half who can cause problems.The distractions for Kyrgios seem to be myriad, although identifying them precisely is difficult. He has said he can be fired up by some of the issues he becomes embroiled in on court but Cahill was more concerned about his conduct during play.Murray will make him pay for a bit of that junk tennis that he sometimes makes other players uncomfortable with, Cahill said.If Nick gets a small lead in the match sometimes hell play a couple of loose points but then hell be able to serve his way out of trouble. Murray will make you pay for one or two cheap points in a game. He leaves no room for that.FatigueKyrgios has played 13 sets and had his last two matches stretch over more than a day, with a total on-court time of 7 hours, 14 minutes. Murray, who has played all his matches on Centre Court, has only had 5 hours, 32 minutes of competition and needed only nine sets to get to the same stage.Nick has had one of the toughest draws of anybody, Cahill said after Kyrgios beat Radek Stepanek, Dustin Brown and Lopez.Hes had no easy matches in the first three rounds so when it comes to playing pressure tennis and making every point count, hes had that from the very first match against Stepanek. Hes going to go in match tough.Physically he looks OK. If he was suffering I think that would have shown on Sunday. So I dont think fatigue will be a factor early on, but it might be if it becomes a long match. Nike Blazer Mid Mens . After Martin Skrtel put the Reds in front from close range at Stamford Bridge after only four minutes, Hazard hit back in the 17th with a superb strike. Etoo gave Jose Mourinhos team a decisive lead from Oscars back pass in the 34th. Nike Blazer Low Le Black . The Cleveland Indians, Tampa Bay Rays, and Texas Rangers all won on Sunday meaning the Rangers will host the Rays in a play-in game on Monday. http://www.cheapblazershoes.com/ . On Tuesday, Ottawa placed forward Cory Conacher and defenceman Joe Corvo on waivers as trade rumours swirl around the Senators. Nike Blazer Sb Mid Sale . -- Matt Rupert scored once in regulation and again in the shootout as the London Knights extended their win streak to nine games by defeating the Owen Sound Attack 4-3 on Friday in Ontario Hockey League action. Off White Nike Blazer For Sale . 4 Villanova with a 96-68 drubbing on Monday. Wragge hit 9-of-14 from behind the arc, matching Kyle Korvers school record for 3-pointers in a game set in 2003, as Creighton (16-3, 6-1 Big East broke a conference record with 21 treys in the rout. RIO DE JANEIRO -- Swimmer Yusra Mardini, who survived a harrowing sea crossing a year ago and is now among 10 refugees competing under the Olympic flag in Rio, won her preliminary heat in the 100-meter butterfly Saturday. But the result wasnt enough to advance her to the semifinals.Mardinis time of 1:9.21 put her 41st overall in the preliminary round, and only the top 16 swimmers moved on to the late-night semifinals. Sarah Sjostrom of Sweden had the top qualifying time of 56.26 seconds.Mardini will compete is a second individual event Wednesday when she swims the womens 100-meter freestyle.Mardini was a competitive swimmer in Syria until she fled the war with her sister last August and survived a hazardous crossing on the Aegean Sea to reach Europe. The Mardini sisters had been among Syrias brightest swimming stars and their family had been moving around to avoid the fighting so they could continue swimming. But the war intensified and eventually the decision was made to leave altogether.The sisters joined a wave of Syrian refugees who left Damascus last summer. They made their way to Lebanon and then Turkey, where they paid smugglers tto take them to Greece.ddddddddddddTheir first attempt was thwarted when Turkish coastguards drove their boat back so they tried again, boarding a small inflatable dinghy at dusk.All but three of the 20 people crowded on the dinghy couldnt swim. Within half an hour, the boat was taking on water.The passengers bags were thrown overboard in an effort to stay afloat as wind churned up the Aegean Sea. But it wasnt enough. As a last resort, the Mardini sisters and another strong swimmer jumped into the water to give the boat more buoyancy.For 3 1/2 hours they clung to the side of the small boat until it reached the Greek island of Lesbos. A weekslong overland trek followed through Macedonia, Serbia and Hungary. They had to hide from police in cornfields to reach Hungary.Eventually, the sisters made it to Austria and then Germany, where they have since been joined by the rest of their family in Berlin.---Learn more about the refugee Olympians competing in Rio: http://interactives.ap.org/2016/refugee-olympians/#syria ' ' '