Liverpool boss Jurgen Klopp missed training on Wednesday after feeling unwell and admitting himself to hospital.
The German had undergone checks by medical staff and was due to be released in the evening so would not require an overnight stay.
"He is being assessed by doctors and will be absent from training on Wednesday as a result," said a statement from Liverpool.
"There are currently no plans for Jurgen to remain in hospital beyond his appointment and he will therefore return home this evening; however, he may require further check-ups in the coming days.
"The club urges that the privacy of Jurgen, his family and other patients is respected while attending hospital visits."
Source: tribalfootball.com