TENNIS world number one Andy Murray said he is ‘concerned’ following his last 16 defeat of the Madrid Open.
Murray was beaten 6-3 6-3 by Borna Coric, ranked 59th in the world.
The Briton has had a difficult season on clay, after failing to reach the final of both the Monte Carlo Masters and the Barcelona Open.
“I definitely think I need to be concerned about today,” Murray said.
“It’s not always the worst thing losing a match, but it’s sometimes the manner of how you lose the match which can be concerning or disappointing.”
Coric only gained a place at the tournament after Richard Gasquet pulled out, making him the first lucky loser to reach the quarter-finals in the Madrid Open.
The Croat broke Murray three times in the opening set, and a further break in the second secured his victory in one hour and 25 minutes.
Murray told news outlets he “didn’t feel that was down to confidence.
“I just wasn’t focusing as well as I needed to on each point.”