With a pending renewal and Espanyol close to relegation, Wu Lei is a steal. Wolves are the team that want him and hence they are interested in signing him. They will go for him, according to Chinese media, if Espanyol go down.
This clashes with the players' wishes. He wants to stay in Spain, he is being important, and although he isn't recording the goalscoring figures he recorded in his homeland, he still has a lot of room for improvement. His current contract runs to the end of this season.
Hence the English side want make the most of a hypothetical Espanyol relegation to sign him. Moving to the Premier League instead of playing in the Spanish second tier could be a hot offer for the attacker.
But everything will depend on what happens with Espanyol in the next few weeks. Wu Lei could change his mind if his side go down and opt to change teams, but for now, he is focussing on the resumption of the championship. Wolves, meanwhile, are keeping an eye on him.