Prompt, Factual and Incisive
Chelsea beat Sunderland in their first game without Mourinho, before recording draws with Watford and Manchester United, and Mikel is pleased with the way things have been going since the 52-year-old's exit.
Southampton humiliated Arsenal 4-0 on Boxing Day as the gunners missed a chance to go top of the English Premier League.
The title favourites had gone into the match needing a win to top the log, with Liverpool having defeated Leicester City 1-0 earlier in the day.
No player in the history of the sport has broken through the $100 million on-court earnings barrier but world number one Djokovic and Federer, the number three, should reach the landmark next year.
Louis van Gaal said that he could jump before he is pushed after his position as Manchester United manager became even more precarious following a fourth successive defeat.
Chelsea midfielder, John Obi Mikel, appears happier under new manager, Guus Hiddink, and is confident the Dutchman can get the reigning Premier League champions back on track.
Premier League team Chelsea has fired high-profile manager Jose Mourinho, according to several English media reports.