June 27 (Reuters) - World number one and ⁠defending champion Jannik Sinner said he is feeling better ahead of Wimbledon, following his ⁠shock early exit at the French Open, and has a plan in place to ‌better cope with extreme heat.

The Italian top seed was knocked out in the second round at Roland Garros by Juan Manuel Cerundolo, building a two-set lead before succumbing to cramps in a Paris heatwave that raised fresh concerns about player ​welfare.