By Chris Harris

Thierry Henry is undergoing extra training to build up his sharpness and stamina for his loan spell at Arsenal.

The Club's record goalscorer made a sensational return on Monday night with the winning goal in the FA Cup Third Round against Leeds United. But Henry, by his own admission, is not quite ready to complete 90 minutes in an Arsenal shirt.

Speaking to Arsenal Player, Wenger revealed that the 34-year-old is doing all he can to put that right ahead of Sunday's trip to Swansea City.

"Thierry works very hard, is doing extra sessions and is highly motivated," said Wenger. "He wants to help out so he makes extra sessions to try and get back to his full fitness.

"He is not there yet but he is not far from the level he was at when he left here [in 2007]. He is fit enough to start a game but not fit enough to last or play the whole thing.

"Those are the decisions I always have to make considering the balance of the team. He is here to help out in any way - that is even what he proposed. Does he sometimes start? Does he sometimes come on? That's what I have to decide. He is in the squad for Sunday."

Watch the full interview with Wenger from Saturday on Arsenal Player.

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 13 Jan 2012