The £25 million summer signing has returned to action at Melwood, while Mario Balotelli looks to have settled in perfectly.
Arsenal's group fate has been decided but unless two problem areas are amended, they will not sustain a Champions League challenge.
Richard Keys has said that Ashley Cole should have gone to the World Cup ahead of Manchester United's Luke Shaw if Roy Hodgson knew about his fitness issues.
The £32 million transfer from Atletico Madrid has been called an "animal", but now he's a "streetfighter".
Arsenal's Per Mertesacker has taken to Twitter to thank the club's fans for the welcome that they gave him on Wednesday night.
Jamie Redknapp believes that Didier Drogba could start for Chelsea against Everton in the Premier League this weekend.
Guillem Balague has said that Arsenal will definitely not be signing Radamel Falcao during this transfer window.
Robbie Savage compared Balotelli's transfer to a particular scenario in the Championship
Chelsea have confirmed that Fernando Torres is to join AC Milan on a two-year loan deal, with the Spaniard's move subject to him agreeing personal terms and passing a medical on Saturday.
New Bayern Munich midfielder Xabi Alonso has been sent a message by the man he seemingly replaces at the Allianz Arena.