Arsene Wenger believes Arsenal ’s defensive strength could prove the key in their Champions League semi-final against PSG. The Gunners are bidding to reach the final of the competition for the first time since 2006, when Arsene Wenger’s side were narrowly beaten by Barcelona in Paris.

The last four teams standing return to play in the UEFA Champions League this week for the first leg of the semifinals, when some of Europe's top sides will begin to map out their route to the final on May 31 at Munich's Allianz Arena.

A place in the Champions League final is on the line as Arsenal and Paris Saint-Germain battle over two legs. Fresh from two famous European nights against Real Madrid, Mikel Arteta’s side will be full of confidence as they begin the last-four encounter.