LONDON, July 9 (Xinhua) -- Defending champion Carlos Alcaraz of Spain and Russia's fifth seed Daniil Medvedev will face off in the semifinals at the Wimbledon Championships after winning their quarterfinals on Wednesday.
Alcaraz, 21, came from one set down to defeat American Tommy Paul 5-7, 6-4, 6-2, 6-2, improving their head-to-head record to 3-2.
"I had to stay strong mentally when I lost the first set
