Pep Guardiola has questions to answer at Manchester City.It was a dream start at City for the coach regarded by many as the best in the world. Ten competitive games; 10 wins; a runaway Premier League win seemingly in the bag. But thats not how the game works and -- fast forward a little over two months -- there are now big question marks over the Manchester clubs title credentials.They will try to bounce back from another disheartening setback when hosting Watford on Wednesday night at the Etihad.Man City (9-3-3) have won just four of their last 15 matches in all competitions and been hit for seven goals over the course of their last two league fixtures. Saturdays 4-2 loss to Leicester City raised doubts over Citys ability to cope with the physical demands of English football.I am not a coach for the tackles, a prickly Guardiola said after the defeat. I dont train for tackles. What I want is to try to play well and score goals.What are tackles? You have to win the duels -- that is true. But normally when you play well you win tackles, but after four minutes, at 2-0, the mind of the players is: What is going on? What happened?It is another aspect of football, but in the end we are not going to win or lose because of the tackles.The remarks are Guardiola being consciously obtuse, almost toying with the real football men scattered across the English media. But the critics of his style would point to the fact that his team had just been dismantled by Leicester as a good example of why his team do indeed need to discover some backbone to go along with the tactical flexibility and pretty build-up play.Wednesdays game against Watford (6-3-6) should be just the chance that City need to show that theyve got the mentality required to catch league leaders Chelsea -- who are currently seven points ahead heading into the midweek matches.Walter Mazzarris Watford have struggled for consistency away from home and allowed nine goals in their last two league matches on the road -- a worrying defensive record ahead of a meeting with free-scoring City.But Watford are no pushovers, as shown by the weekends 3-2 home win over Everton. The Hornets will have taken hope from Citys capitulation against Leicester.I saw the game against Leicester, Mazzarri said. I was surprised, but in Italy we have a saying: Each game has its own story.That result wont help us. We will find Manchester City very angry and concentrated, we wont have the luck that they will underestimate us.Angry and concentrated they may be, but the Citizens will be missing both club captain Vincent Kompany due to injury and talismanic striker Sergio Aguero due to suspension.Watford have a number of injury concerns, and Mazzarri has admitted that he is concerned over the fitness of a number of those who started against Everton at the weekend.After such an intense game like the one against Everton, where we spent a lot physically and mentally, its hard for me to decide on the team that will take part in the game against Manchester City, the Watford boss said.Some of the players have trained since individually, some trained with the whole team. In order to make a decision we will assess them (Tuesday) or the day after.Adrian Mariappa is certainly unavailable due to a knee injury, but Craig Cathcart, Younes Kaboul and Valon Behrami will face late fitness tests. 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He was fined $30,000 for a hit on the New York Jets Jeff Cumberland in Week 1. SHANGHAI -- Novak Djokovic certainly appears to be a different player on court these days -- smiling after shanking balls instead of screaming, humming songs instead of hurling rackets.And thats when hes having an off day.Djokovic was sluggish and error-prone early in his quarterfinal match against Mischa Zverev at the Shanghai Masters on Friday, but he maintained his composure and fought back to win 3-6, 7-6 (4), 6-3.The top-ranked Serb has said in recent weeks that he is trying to find more balance in his life and reduce some of the pressure he has felt on court this season. Part of that entails staying calmer during matches, particularly when things arent going well.In the first set against Zverev, things couldnt have gone much worse. Djokovic piled up 18 unforced errors to only four for Zverev, a German qualifier ranked 110th, and connected on less than half of his first serves.Djokovic started to find his game in the second set, but Zverev continued to press him with his serve-and-volley style, forcing more miscues.I wasnt striking the ball very well, Djokovic said. I was quite flat with my feet, so he got me where he wanted to get me, and to stand still at the baseline.[Zverev] was fighting. He was focused. He gave his best, and he was a few points from winning.Despite his rash of unforced errors -- finishing with 37, including six double-faults -- Djokovic didnt glower at his coaches in the stands or scream at himself. Not once.Instead, he hummed a little song.It was toward the end of the match, he said of his musical interlude. Instead of the occasional tantrum that I used to have -- I hope its behind me -- I would switch that vibration and transform it in a tune.The song that soothed him? Djokovic couldnt quite recall at his postmatch news conference.Im trying to remember. Which one was it? he said. It was a famous song, actually.Djokovic completed a career milestone by winning the French Open this year, but the following months brought only frustration, injuries and discouraging losses.ddddddddddddHe was mentally exhausted and decided he needed a new mindset, prioritizing happiness on court, not winning.Djokovic even hinted this week that it could bring about a coaching change in the new year. Asked Thursday about the status of his coach, Boris Becker, he said they planned to finish off the rest of the season together. As for next season, he added, We still havent talked about it.Becker did not accompany Djokovic to Shanghai.Djokovic next plays 15th-seeded Roberto Bautista Agut in the semifinals. The Spaniard beat Jo-Wilfried Tsonga 6-3, 6-4.Second-seeded Andy Murray played with the same focus and sharpness he has displayed all week, easily defeating 11th-seeded David Goffin 6-2, 6-2.I had to stay strong there in the second, because physically, although it was a 6-2, 6-2 match, it wasnt easy because a lot of the points were tough, Murray said.Murray hasnt been broken in three matches in Shanghai and hasnt dropped a set in his last nine matches going back to mid-September. He is going for back-to-back titles in China after winning the China Open last week.In the semis, Murray will play Gilles Simon, who beat Jack Sock 4-6, 6-4, 7-6 (5) in the days final quarterfinal.Simon and Sock combined for 80 winners in the hard-fought, two-hour, 40-minute match, including a tricky, between-the-legs lob by Sock in the first set that floated over the Frenchman and landed just inside the baseline.Sock had been dominating the match early on but took a tumble late in the second set after slipping on a wet spot and bloodied his hand. He lost the next two games to drop the set and let Simon back in the match. ' ' '