Chair umpire Ramos has lasting impact on U.S. Open

FILE PHOTO: Tennis - Davis Cup - World Group Semi-Final - Croatia v United States - Sportski centar Visnjik, Zadar, Croatia - September 14, 2018 Umpire Carlos Ramos during the match between Frances Tiafoe of the U.S. and Croatia's Marin Cilic REUTERS/Antonio Bronic

NEW YORK (Reuters) - Until last year's U.S. Open, few tennis fans could identify a tournament official by name. That changed during the 2018 women's final when chair umpire Carlos Ramos shot to prominence after a seismic clash with Serena Williams.

A year on from the tense decider won 6-2 6-4 by Naomi Osaka, opinion remains deeply divided over how Ramos handled the match and the heated exchanges with Williams, one of the game's greatest players.