Andy Murray's father-in-law Nigel Sears is being treated in hospital but says he is "feeling fine" after collapsing at the Australian Open.
Sears, 58, coaches Ana Ivanovic and was watching her match with Madison Keys on Rod Laver Arena. The match was suspended for an hour before resuming.
Murray was not made aware of what had happened as he was playing Portugal's Joao Sousa at the time.
Sears later told the BBC he hoped to be released from hospital on Sunday.
Immediately after his four-set win, Andy Murray left the venue, along with his mother Judy, to visit his father-in-law in hospital.