Wenger looks to bolster Arsenal defense

Arsenal manager Arsene Wenger says he will focus on bolstering his team's defense in the current offseason, believing that is the key to challenging for the English Premier League and Champions League titles in the next campaign.

Wenger, who was invited by FIFA World Cup sponsor Castrol to visit China over the weekend, said that Arsenal had scored as many goals as first place finishers Manchester United, but conceded more than any of the other top four teams.

Five defeats in the first 14 games ensured they had a steep hill to climb, but the players came through stronger, he said.