Al Nasr signing Brett Holman holds no grudge against former club Aston Villa.
Holman, who was signed by - but never played for - Alex McLeish, fell out of favour with Lambert in the second half of last season and has committed himself to the UAE Pro-League club until the summer of 2015.
"It is a move you have to put a lot of thought into," said Holman.
"It's a big step.
"The Premier League is a fantastic competition and I was at a great club, Aston Villa.
"They treated me really well, but it wasn't meant to be there.
"I have a lot of ambition and so does this club, Al-Nasr."