Arguably the best server on the Tour at the moment, Matteo Berrettini makes a delayed return to the hardcourt in Cincinnati. Injury has kept him away since the Australian Open - though the world number eight had an exceedingly good run on grass - winning the ATP 500 at The Queen's Club - then reaching the final at Wimbledon. "I'm feeling better, definitely. I got injured, unfortunately, but, so I took time to come back. But I'm really happy that I made it here in Cincy. It's an important tournament for me. It's a great atmosphere. So I really cannot wait to start." A bye first up for the Italian - the fifth seed in Ohio.