De Bruyne wants new arrivals

Wolfsburg winger Kevin De Bruyne believes the club need to invest in more players if they want to challenge for trophies this season.

The Belgian is back in pre-season training after the World Cup, but remains concerned by the threadbare nature of the Wolves squad.

By finishing fifth in the Bundesliga in 2013-14, they have qualified for the Europa League and De Bruyne feels it is therefore necessary to swell the ranks of players while the transfer window is still open.

"Given that we are playing in three competitions, we're going to have a lot of games this season," he told

"It's not going to be possible for every player to play week in, week out. If we don't want to lose our quality, then we need new players.

"We want to challenge in all three competitions we are in. We want to try to qualify for the Champions League, but that's not going to be easy."

Wolfsburg have already missed out on several transfer targets this summer with Alvaro Morata choosing Juventus and Mattia Destro preferring to stick with Roma.

Romelu Lukaku snubbed the Wolves to join Everton from Chelsea, but Josuha Guilavogui could arrive from Atletico Madrid.

"We've reached an agreement with the player and Atletico," said Bremen's director of sport Klaus Allofs.