Andy Murray started his campaign at the ATP Challenger Tour event in Rennes, France on a high note with a convincing win over German Yannick Maden.

Murray, world No 116 in the latest ATP rankings, won in straight sets, 6-3, 6-1, against the world No 240.

The Scot hit eight aces and broke his opponent’s serve five times, while dropping serve only once.

Murray is the first Grand Slam champion to compete in this Challenger Tour event, which started in 2006 when it was won by Frenchman Jo-Wilfried Tsonga.

The Challenger circuit is the second tier of men’s professional tennis, just below the ATP Tour.

It has been a fall from grace in recent years for Murray, who has not been the same player since getting a metal hip.

He lost in the US Open first round in five sets to Greek Stefanos Tsitsipas. The match was, however, shrouded in controversy with Murray taking exception to Tsitsipas taking two lengthy bathroom breaks before winning 2-6, 7-6 (9/7), 3-6, 6-3, 6-4.

Murray’s next match in Rennes is against either Frenchman Manuel Guinard (world No 160) or Russian Roman Safiullin (world No 158).

READ | Fuming Andy Murray made TWO rookie mistakes in US Open defeat to Stefanos Tsitsipas

Picture: Andy Murray – ATP Challenger Tour/Twitter