Carlos Alcaraz says the new shot clock is ‘bad for the players’ after feeling rushed during his defeat to Jack Draper

Carlos Alcaraz says he will complain to the professional tennis tour (ATP) over a “crazy” rule change that is being trialled at Queen’s this week.

Alcaraz, 21, was handed his first defeat on grass in nearly two years on Tuesday, beaten in straight sets by British No 1 Jack Draper. As well as being outplayed by Drpaer, reigning French Open and Wimbledon champion Alcaraz tangled with umpire Mohamed Lahyani in the first set over the time he was being given between points.

The ATP has been running a rules trial for the last 10 days where the 25-second “shot clock” starts automatically three seconds after the previous point. Players can be warned and eventually docked a point if they do not start serving before the clock expires.

An even more stringent set of timing rules is being trialled in the doubles tournament, where the shot clock is down to just 15 seconds instead of the 25 afforded to singles players. Once a set, players are allowed to call for a 10-second extension.

At change of ends, teams are only allowed 40 seconds before “time” is called, creating problems for stewards trying to to get spectators into seats between games. Another player added: “I don’t know anyone that likes it, even the fans on court were complaining about it.”