Tennis: McEnroe's vision can help Raonic to see the light on grass

PARIS (Reuters) - Now that his clay-court season is over, Canadian Milos Raonic is readjusting his sights on to Wimbledon's lawns with grass-court great John McEnroe providing "another set of eyes".

American McEnroe, who won three of his seven grand slam titles at Wimbledon, announced on Friday that he was joining the Raonic camp during the grass-court swing.

Raonic said it was a "great honour" to have McEnroe in his corner and explained how the collaboration would work after a disappointing fourth-round loss to unseeded Spaniard Albert Ramos-Vinolas at Roland Garros on Sunday.

"I was sort of just looking for another set of eyes to be a bit more efficient on grass," Raonic, who is coached by Riccardo Piatti and also has former French Open champion Carlos Moya as part of his team, told a news conference.

"There is going to be the three weeks leading to Wimbledon that we are going to work and really put some attention to that and just find that groove, that efficiency."

Raonic reached the Wimbledon semi-finals two years ago, losing to Roger Federer.

With a powerful serve and damaging forehand, he will arrive in London this year as a player to watch.

McEnroe, Wimbledon champion in 1981, 1983 and 1984, was one of the game's most instinctive volleyers, gliding stealthily towards the net to catch opponents off guard.

While Raonic has made strides in improving his forecourt play, he knows it still needs work if he is to seriously threaten players such as Novak Djokovic and Andy Murray at the grass-court grand slam.

"I'm sure he'll have some advice to give, and some quality advice to give," the 25-year-old said. "I think if you see great volleyers volley, most of the time volleys are pretty easy and it's because of positioning."