Recently Tennis legend Roger Federer announced his retirement from Professional Tennis. He is associated to which country?

Roger Federer is a Swiss former professional tennis player. He was ranked world No. 1 by the Association of Tennis Professionals (ATP) for 310 weeks, including a record 237 consecutive weeks, and finished as the year-end No. 1 five times. He won 103 ATP singles titles, the second most of all time, including 20 Grand Slam singles titles, a record eight men’s singles Wimbledon titles, an Open Era record-tying five men’s singles US Open titles, and a record six year-end championships. On 15 September 2022, he announced his impending retirement from professional tennis on the ATP Tour, noting that the Laver Cup would be his final ATP event.