Manchester City striker Sergio Aguero says he is unsure if he will play against Chelsea on Sunday afternoon.
He came on in the second half in City's 3-0 away win against West Bromwich Albion on Monday and could again start on the bench in Sunday's big game at home against Chelsea.
The Argentine arrived late for pre-season after featuring in the Copa America and admits that he needs time before regaining full fitness.
"Whether I start or not remains to be seen," Aguero told the club's official website.
"I'm trying to get there and be in top condition, but arriving for pre-season later having taken part in the Copa America with Argentina means I need some additional time.
"With the whole season in mind, what matters the most is that I get in top form and don't take any risks.
"One thing you can say about the Premier League is that every year, it gets better.
"Once again, many teams have made very important additions and that means there's no single rival for us this season.
"It'd be very naive to think that Chelsea will be the only team competing for the top position - there will be many of us and each one will challenge in their own style.
"We'll stay hungry for glory, we'll do our jobs, we'll win all we possibly can and see where that takes us."