There are three Association of Tennis Professionals (ATP) tournaments on the calendar this week: in Marseille, France, in Doha, Qatar and in Santiago, Chile.
Roger Federer, he of 20 Grand Slam titles fame, is making his long-awaited comeback in Doha, at the age of 39½. He last played on the tour 14 months ago (in the 2020 Australian Open), and had two knee operations after that. He said today that he is now free of pain and injury — and has no plans to retire (!).
Update Wed 3/11: Federer ousted Dan Evans (30, Great Britain) in his first match, but then stumbled and lost against Nikoloz Basilashvili (29, Georgia) in the quarter-final.