Australian Nick Kyrgios has been banned for eight weeks and fined $25,000 by the ATP for his behaviour - including "lack of best efforts" - in the Shanghai Masters.
The 21-year-old patted the ball over the net several times when serving during his 6-3 6-1 defeat by Mischa Zvever last week, and began walking back to his chair before a Zverev serve had landed.
Kyrgios apologised in a statement and said he would use the time to "improve on and off the court".
More to follow.