Judging the performance of a player at an event like the Presidents Cup can be slightly tricky, in part because it's such a small sample size, and in part because results often depend so much on both playing partners and opponents.

Xander Schauffele rejected Tom Kim's stunning claim that players were swearing at him and his team-mate Si Woo Kim at the Presidents Cup.

Tom Kim was involved in another act of defiance during the third day of the Presidents Cup, with the 22-year-old appearing to be less than impressed not to be given a 'gimme' putt