Per Mertesacker admits he has been pleased by Arsenal's development over the past few months.

The Gunners made it 10 Premier League matches without a loss when beating Hull City 3-1 on Monday night and the evolution of Arsene Wenger's team since the turn of the year has impressed central defender Mertesacker. "We can be proud of our progress in the year 2015. Everyone is saying we have to finish strong but to deal with that pressure at the moment is really good. I'm really pleased."