Wayne Rooney
Wayne Rooney. Getty

Wayne Rooney has backed Danny Welbeck's decision to move to Arsenal during the summer transfer window, claiming "it was the best move for him" after Louis van Gaal said he was not good enough for Manchester United.

The English international striker decided to move to the Emirates Stadium on deadline day after United signed Radamel Falcao - while Robin van Persie and Rooney himself were also ahead of him in the manager's plans.

Arsene Wenger showed his confidence on his worth by paying £16m, while Welbeck has since responded with five goals in 12 appearances for the Gunners – including a Champions League hat trick against Galatasaray.

With the English international forging an impressive partnership with Rooney during recent games with Roy Hodgon at the helm - scoring a brace against Slovenia - some have started to questioned van Gaal's decision.

But Rooney believes Welbeck made the right choice, as his former teammate was frustrated at Old Trafford both for his lack of playing time but also because he played on the flank rather than in his preferred central striking role.

"I think, for Danny, and for his own personal career, it was probably the best move for him. He's done great and scored a few goals and is playing well. Danny gives you what he always gives you - a good shift. He works hard for the team," Rooney said, according to Manchester United official website.

Even though Welbeck is still doubtful for the United visit to the Emirates Stadium on Saturday 22 November, Rooney admits it will be weird to see him with the Arsenal shirt should he finally be fit to play.

"Of course, Danny has been here all of his life. He is a Manchester lad so it is weird seeing him [there]. But that's football nowadays and players move on," he said.

"At times, as I said to him, he works a bit too hard but he's scoring goals and he's doing well."