Andy Murray is to marry long-time girlfriend Kim Sears.

The former Wimbledon and U.S. Open champion's management company confirmed the engagement.

Earlier Wednesday, the 27-year-old Scot announced further changes to his professional support team by splitting with assistant coach Dani Vallverdu and fitness trainer Jez Green.

Murray hired Amelie Mauresmo as his coach in June, three months after parting ways with Ivan Lendl.

Mauresmo's position has been under scrutiny in Britain after Murray was eliminated from Wimbledon and the U.S. Open in the quarterfinals this year, then lost 6-0, 6-1 to Roger Federer in the ATP Finals in London.

Vallverdu has been a close friend of Murray's for more than a decade since meeting at an academy in Spain.