Wednesday 12 October 2016 15:25, UK
Andy Murray was left angry after notes about his China Open final opponent, Grigor Dimitrov, were shown on TV.
Murray won the game 6-4 7-6 on Sunday, but his tactics against the talented Bulgarian were broadcast to viewers.
His notes included a reminder to attack Dimitrov's second serve and to not allow his opponent to dictate with his powerful forehand.
The notes also revealed how Murray planned to run around his forehand whenever Dimitrov sliced the ball.
The world No 2 said: "I don't like it when they go into my bag to look at it because they're personal notes. I try to keep them covered because I want to keep them for me.
"It's not for everyone else to see, otherwise I'd stick them up on the umpire's chair so everyone else could see it."
