World No 1 claims 7-6 (6), 6-4, 7-5 victory over 19th seedPlayer been making significant changes to service motionCarlos Alcaraz spent the final 52 minutes of his fourth-round match at the Australian Open chasing down his prey, determined to convert his two-set lead into a straightforward win against Tommy Paul.As he worked hard to secure the decisive break in set three, Alcaraz put together a flawless serving performance. He won 86% of his first serve points in the set, landing 76% of his first serves. He did not even come close to facing a break point, losing just five service points in total. Alcaraz, the world No 1, closed out his 7-6 (6), 6-4, 7-5 win over the 19th seed Paul with an unreturned serve. He will play Australian Alex de Minaur in the quarter-finals. Continue reading...