Here's a look at events that made news in the sporting world

Five in a row for Merc | British racer Lewis Hamilton won the Brazilian Grand Prix, thus helping Mercedes to win constructor's championship. The German automobile giant has now won five consecutive World Championships in F-1. The racer had already won the driver's championship thus winning F-1 driver's championship for 5 times. (Image: Reuters)

Roger Federer slumps at ATP Finals (Tennis)| Six time ATP Finals champion Roger Federer lost his opening fixture against seventh seed Kei Nishikori 6-7 3-6. Nishikori, who is a two-time semi-finalist at the season finale held at The O2 in London, had not beaten Federer since March 2014 in Miami. Nishikori required 88 minutes to wrap up the Group Lleyton Hewitt round-robin match. (Image: Reuters)

Agnieszka Radwanska hangs her racquet (Tennis)| Former World No.2 Agnieszka Radwanska announced her retirement from professional tennis. The 2012 Wimbledon finalist, said in a statement "today, after 13 years of playing tennis competitively I have decided to end my career. " Radwanska was the first Polish player to reach a Grand Slam singles final in the Open Era. (Image: Reuters)

ICC Womens World T20 (Cricket) | The sixth edition of the ICC Women's World T20 event kicked off in the Caribbean. This is the first time that the Women's World T20 tournament is being organised as a stand-alone tournament. The previous editions have been held alongside Men's T20 World Cup. The Caribbean islands of Guyana, St. Lucia and Antigua are hosting the tournament. Indian women's team got off to a great start with wins against New Zealand and Pakistan. (Image: https://www.icc-cricket.com/photos)

India whitewash West Indies | India won the the third and final T20I against West Indies by 6 wickets in Chennai and completed a clean sweep . India had previously won the 1st and 2nd T20Is at Kolkata and Lucknow by 5 wickets and 71 runs respectively. (Image: AP)

Women's World Boxing kicks-off in Delhi| The 10th edition of the the Women's World Boxing championship kicked-off in New Delhi. The competition sees the participation of 300 boxers from 70 countries including eight debutants. The competition drew flak from many boxers owing to severe level of pollution in the Delhi. Many boxers wore masks during their practice sessions. Mary Kom led India's challenge in the global event. (Image: Reuters)

Manchester Derby in Premier League (Football) | Thanks to the the goals from David Silva (12'), Sergio Aguero (48') and Iikay Gundogan (86'), City came out on the top in the much anticipated Manchester Derby. Anthony Martial converted from the spot in the 58th minute after substitute Romelu Lukaku was fouled by the on-rushing Ederson but City proved too strong an opponent for José Mourinho's men to kindle any further hope of revival. This was City's first home derby victory in four years. The win saw City continue its stay at top of the Premier League table while United linger at eighth -- 12 points adrift from their cross town rivals. Final score Manchester City 3 - 1 Manchester United (Image: Reuters)

Hong Kong Super 500 (Badminton) | Olympic Bronze medalist PV Sindhu progressed into the second round of the Hong Kong Open World Tour Super 500 Tournament. Sindhu recovered from a mid game slump to surpass Thailand's Nitchaon Jindapol 21-15, 13-21, 21-17. Sindhu's fellow country woman Saina Nehwal went down 10-21 , 21-10 , 21-19 to Akane Yamaguchi of Japan. (Image: Reuters)

Floyd Mayweather backs out (Boxing/MMA) | Floyd Mayweather has backed out from a planned New Year’s Eve fight with Japanese kickboxing star Tenshin Nasukawa less than three days after he appeared at a Tokyo press conference announcing the bout, claiming he was “blindsided” by the promoter regarding the nature and magnitude of the event. (Image: Reuters)