The two-year-old was reportedly 'one sick little girl' according to the cricketer, who shared an image of Kyly and Kelsey to Instagram.
'It’s not all rainbows and butterflies. One very sick little girl and one very worried Mumma,' Michael captioned the black-and-white photo.
Fortunately, Clarke also shares: 'Fortunately all is [thumbs up emoji].'
The couple have not yet revealed any more details about their daughter's condition.
Kyly and Michael wed in 2012 and welcomed their daughter in 2015. Kelsey was born premature and spent her first few days in an incubator.
Sending well-wishes to the little bub!