Andy Murray says his serving is slowly improving again, but he needs to get better following a third-round defeat at the Monte Carlo Masters.
The world No. 1 was up 4-0 in the third set against Albert Ramos-Vinolas before losing in heartbreaking fashion. He was broken seven times during the encounter.
Murray was sidelined for more than a month with an elbow injury, and said he had taken a lot of speed off his delivery until just a few days before the tournament.
"When you start serving fast again, it just takes a bit of time to get into a rhythm," Murray told Sky Sports. "I'm going to need to obviously improve my serving during the next few weeks."