Andy Murray's father-in-law Nigel Sears collapsed at the Australian Open - just weeks before his daughter Kim is due to give birth.
Sussex-based Sears, 58, fell ill during the third round match between Ana Ivanovic - who he coaches - and Madison Keys today.
He was treated by paramedics in the stands and then stretchered away with his shirt off and attached to an oxygen tank.
He is understood to have been conscious and alert as he was taken to hospital.
Murray was unaware of what had happened as he was playing on a neighbouring court. He was informed after his match by his mother Judy and appeared to walk straight out of the stadium.
Murray's team were kept abreast of developments but with Sears seemingly fine, did not feel the need to communicate the news to him.
When he left the court following his 6-2 3-6 6-2 6-2 victory against Portugal's Joao Sousa, he was pulled aside by his mother and then seemed to leave the stadium.