Kevin De Bruyne has hit out at Chelsea after claiming that Blues boss Jose Mourinho didn't give him enough of an opportunity to prove himself.
The Belgian international left Chelsea permanently for Wolfsburg in a £17m deal in the January transfer window.
After spending the whole of the 2012-13 season on loan in Germany he returned to Stamford Bridge last summer to try and force his way into the Chelsea first-team.
It initially looked positive after De Bruyne started the first few games of the season, but he was dropped following the Swindon game in the Capital One Cup in September and failed to win his place back.
"For myself I know what I do on the field," he told Sky Sports News. "Physically I'm always one of the top players in the game and run a lot of kilometres.
"The second half of the season [at Wolfsburg] I showed everybody I'm a good player.
"But it's difficult to prove yourself if nobody can watch you - that's all I can say about it. I'm not at the club anymore and I'm doing fine at the moment."
Wolfsburg finished the season in fifth in the Bundesliga, and De Bruyne became an ever present for the club following his arrival in January. The former-Chelsea star made 16 appearances, scoring three goals and providing six assists.
Competition for places was fierce at Chelsea earlier in the season, with De Bruyne battling Willian, Eden Hazard, Oscar and Ramires for three places.