Sergio Aguero
Sergio Aguero is in contention to start against ArsenalGetty

Manchester City have received a massive boost in the form of Sergio Aguero, who is back in training after recovering from a heel injury. The Argentine is in contention to start against Arsenal in a crucial six pointer at the Emirates Stadium on 21 December, a game which has the potential to decide the fate of the title.

The Telegraph reports that the striker is under close observation to check for any recurrence of the injury but was back in full training with the squad on Tuesday, 15 December, giving Manuel Pellegrini another option up front. The 2013/14 champions secured an important 2-1 win over Swansea last weekend, which kept them in third spot, one point behind Arsenal and three behind Leicester City.

With David Silva also back on the pitch, it gives the manager a wealth of options up front, with the likes of Kevin de Bruyne, Raheem Sterling and Wilfried Bony all fighting for a spot in the first eleven. Yaya Toure, who missed a major part of the campaign, is also back in the mix for selection, giving Pellegrini a real headache in terms of forging his team for the fixture.

However, the game against Arsenal is likely to come a bit too early for Vincent Kompany, who is still recovering from a calf injury. The defender is likely to be back in light training this week but would need a few days more to gain match fitness, having spent the major part of the campaign on the sidelines.

The Gunners are not too well off in the injury department themselves, with a string of first team players likely to miss out on the important fixture. The likes of Santi Cazorla, Francis Coquelin, Jack Wilshere and Danny Welbeck are confirmed out of contention, while Alexis Sanchez has a chance to feature after undergoing treatment on a hamstring issue in Chile.

The Gunners have won three games on the bounce this month, beating Sunderland and Aston Villa in the league thus far, while their 3-0 win over Olympiacos helped them qualify to the round of 16 tie of the Champions League.