Carlos Alcaraz says he is feeling better ahead of the French Open, but still has concerns about ongoing issues with his right forearm.

The world number three reached the semi-finals at Roland Garros 12 months ago, losing out to eventual champion Novak Djokovic, but his preparations have been far from ideal this time around.

Alcaraz has been dogged by an injury to his right forearm during the clay-court season, which forced him to withdraw from Barcelona and Rome, while his fitness struggles were evident in his Madrid Open quarter-final defeat by Andrey Rublev.

The Spaniard admits he may have to adapt his game plan against J.J. Wolf in the opening round, but he was optimistic on media day in the French capital.

"I'm feeling better," he smiled. "At least I can practise and hit balls without pain. That's a really good point for me. I came here to this tournament with not as many matches as I wanted, but I'm focusing on practice.

"I'm not feeling any pain when I step on the court in practice, but I'm still thinking about it when I am hitting forehands. I'm a little bit scared about hitting every forehand 100 per cent, so I have to change it in my first match.

"It's Roland Garros, and it's a really special tournament. Everybody wants to have good results here. This tournament is one of the main reasons that I'm practising every day. I want to be a better player, to be able to win these kinds of tournaments.

"I'm practising well. I'm getting in rhythm. I'm getting confidence [from] the practice and that is really important, and I think I don't need too many matches to get to my 100 per cent level."