Arsenal and England forward Theo Walcott has backed himself to rediscover his best form after returning from injury.
Walcott has been out since September with a stomach problem which required surgery.
But he came on for the final 20 minutes of the 2-0 win over his former club Southampton on Saturday and he has now targeted a return to Arsene Wenger's starting line-up, as well as a place in Roy Hodgson's World Cup squad.
"It is a challenge I can face, I have faced some in my short career so far," said Walcott.
"It is nothing new to me, I know how to deal with it all. I have some fantastic people around me and know how good I am.
"It will take a couple of games, but I am sure I will be back to my best very soon."
Walcott admitted it had been tough watching from the sidelines but he is delighted to return to a side at the top of the Premier League table.
"It has been longer than I thought, but it is so good to be back out on the pitch with the guys and playing in such a fantastic team," he added.
"Seeing the way we play football has been fairly pleasant to watch, but any player who is injured wants to go out there and perform.
"It is frustrating at times, but you have just got to think about getting back fit as soon as you can, and I am happy to be back now."