Andy Murray celebrated his rise to No. 1 by beating American John Isner, 6-3, 6-7 (4), 6-4, on Sunday to win the Paris Masters for the first time.
It was his career-best eighth title this season, his 14th in Masters overall, and ended Isner's bid for a first Masters title.
Murray, who officially replaces Novak Djokovic at the top of the rankings on Monday, now leads Isner 8-0 in their career meetings, dating back to their first match at the Australian Open six years ago.
He recently beat Isner, 6-1, 6-3, in the quarterfinals of the Erste Bank Open in Vienna, but this was a very different match and thoroughly contested by the big-serving...