Manchester United midfielder Tom Cleverley admits he is disappointed to be injured and does not believe the battle for the Premier League title is a two-horse race.
Cleverley started the campaign as first choice, but then endured several weeks on the sidelines after picking up an injury at Bolton Wanderers in September.
The 22-year-old then damaged ankle ligaments in only his second game back against Everton in late October and is expected to return to action around Christmas.
The England hopeful is making progress in his rehabilitation and is upset that he is unable to contribute to United's bid to stay in the hunt for trophies.
"I was in some good form," Cleverley told Sky Sports News about how he was doing prior to his injury. "I was happy with how the team was playing and not just myself.
"I'm really disappointed to be injured at the minute."
The Red Devils secured a 1-0 win at Aston Villa on Saturday, the fourth time in five league games United have won by that scoreline since being hammered 6-1 by Manchester City in October.
There have been suggestions this season's title tussle is between the reigning champions and their local rivals, but Cleverley believes other teams will be in the mix.
He added: "I think winning titles is sometimes about 1-0 wins away at Everton, away at Aston Villa. I'm pleased with how the lads are getting on.
"I think you can never rule Chelsea out and Spurs are playing really well at the minute.
"The two Manchester clubs are flying high at the minute which is good for the city."