India, July 8 -- Roger Federer was back at Wimbledon on Monday on the 18th anniversary of his memorable five-set loss to rival Rafael Nadal in the 2008 final.

Wearing a brown double-breasted suit, Federer - the record eight-time men's singles champion at the grass-court Grand Slam - was a guest in the Royal Box for fourth-round matches.

Federer sat in the front row for the Centre Court match featuring rising player Alexandra Eala of the Philippines against 2024 finalist Jasmine Paolini. Up next, it was Grigor Dimitrov against fellow wild card Arthur Fery, who grew up just beyond the All England Club's gates, and French Open champion Alexander Zverev against Jiri Lehecka.

When the Zverev-Lehecka match started near 9 p.m., Federer was br...