Ander Herrera
Herrera has scored seven goals since his summer move from Athletic Bilbao. Getty Images

Manchester United legend Paul Scholes believes Ander Herrera has been the best signing made by Louis van Gaal in the summer of 2014.

After David Moyes failed to bring the Spaniard to Old Trafford in 2013, the Dutch boss made him the first addition of his summer transfer overhaul after agreeing to meet the €36m (£26m, $39m) release clause imposed by Athletic Bilbao.

Earlier in the season, the Spaniard claimed he was looking forward to fill the void left by Scholes at Old Trafford since his retirement.

"The best midfielders in the world like Paul Scholes scored hundreds of goals. I want to make and score more goals, and I wish one day that I can be like Scholes I have a lot of respect for him and I always enjoyed watching him," Herrera said at the time.

"He always worked hard, helped the team and always made a lot of chances not only for himself but for all his team-mates. I know it will be difficult but I wish that one day I can be similar to him."

And now Scholes has responded to Herrera's praises while revealing his admiration for the Spaniard, selecting him ahead of Angel Di Maria, Radamel Falcao, Luke Shaw, Marcos Rojo and Daley Blind as the best signing of the summer of 2014.

"I think it was difficult for all the signings at first – the first six, seven, eight months was probably very difficult," Scholes told Newstalk FM.

"I think you'd have to say now that Herrera's been the one who's impressed me most. He's another one that did struggle to get in the team early on but now he's playing really well, playing really good football, looks like he's going to score goals, looks like he's going to make goals. He's been a great addition and he's only a young lad as well."

Herrera has a difficult start to life under Van Gaal but managed to overcome his exile from the team during December and January to become a crucial asset during the second part of the campaign.

The Spaniard, who has scored seven goals this season, received the club's player of the month award for February and has also been nominated for the April award.