FORMER Saints manager Ronald Koeman has undergone a heart procedure in Amsterdam after experiencing chest pain and is due to return home on Monday.

The 57-year-old, who took charge at St Mary's in 2014 and spent two seasons in the job, was taken to hospital on Sunday evening where he underwent cardiac catheterisation.

That involves the placement of a long, thin tube into a vein or artery and is typically performed without general anaesthetic.

A statement from the Dutch football association, the KNVB, read: "Ronald Koeman was hospitalised on Sunday evening after chest complaints. The 57-year-old national team coach of the Dutch national team has undergone a successful cardiac catheterisation and will return home tomorrow.

"We wish Ronald a lot of strength and improvement."

A tweet from the governing body's account added: "That is a shock. Fortunately things are going better again."

Koeman led Saints to a sixth-place finish in the Premier League in 2016 which also resulted in a record 63 points and Europa League qualification.

He then left to join Everton in the summer and lasted just over a year at Goodison Park after being sacked in October 2017.

The Toffees posted a message of support for the former Barcelona defender, tweeting: "Everyone at #EFC would like to wish former boss @RonaldKoeman a speedy recovery."

France midfielder Morgan Schneiderlin, who played under Koeman for both the Toffees and the Saints was also quick to react.

"Prayers are with you! Stay strong @RonaldKoeman," he wrote.

The former Saints boss didn't have to wait long for a job after being dismissed by Everton, though, as he was appointed Holland manager in February 2018.

He replaced the sacked Dick Advocaat on a four-and-a-half-year deal which will take him to the 2022 FIFA World Cup.

Koeman managed Saints for 91 games, winning 44 of those and losing just 30.