Ander Herrera has confirmed he will leave Manchester United at the end of the season when his contract expires.

Spain international Herrera, 29, made the announcement in a farewell message posted on the club's Twitter account.

A goodbye message from @AnderHerrera. ? #MUFC pic.twitter.com/z56bmBwXa9

— Manchester United (@ManUtd) May 11, 2019

Sources have told ESPN FC that Paris Saint-Germain, Arsenal, Juventus, Inter Milan and Barcelona are among the clubs interested in signing the midfielder as a free agent in the summer, with Ligue 1 club PSG the most strongly linked.

Herrera spent five years at Old Trafford after signing from Athletic Bilbao in 2014. He helped the club win the Europa League, FA Cup and League Cup in the 2016-17 and claimed the club's Sir Matt Busby Player of the Year award that season.

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"There is red in my heart, I knew it from the first time I played here and in the moment I started to wear it," he said.

"A club with thousands of fans who respect and remember all the players who give everything. I felt special when I heard my name chanted. I felt proud when the fans decided I was part of this incredible history.

"Every time I represented this club, in every game, in wins and losses, even when I couldn't help from the grass, I understood what this club means.

"I am going to remember each of the almost 200 matches that I have played with this jersey. Because playing for the greatest club in England, has been a true honour. Thanks for these five amazing years."

Herrera's fellow Spanish midfielder Juan Mata is also out of contract at Manchester united at the end of the season, and talks are ongoing with the 30-year-old over a new deal.

United manager Ole Gunnar Solskjaer confirmed last month that Antonio Valencia will also leave the club this summer.