The last match of Roger Federer¡¯s 24-year professional career was about to begin, and Andy Murray, one of his rivals turned teammates at this Laver Cup in London, kept his advice short and sweet.

¡°Enjoy it,¡± Murray said.

Federer, 41, took that to heart Friday night: acknowledging the roars and support of the sellout crowd in the O2 Arena; smiling often and cracking jokes with his doubles partner Rafael Nadal as they lost to Frances Tiafoe and Jack Sock, 4-6, 7-6 (2), (11-9). The decider after the teams split sets was a 10-point tiebreaker rather than a third set.