Birmingham have extended defender Jonathan Grounds’ contract for a further year, the West Midlands club have officially announced.
Grounds made 45 appearances for the Blues this season, the club’s joint-highest alongside fellow defender Ryan Shotton.
“The 29-year-old’s existing deal had been due to expire next month and the extension will run until June 30, 2018,” Birmingham confirmed on their official website.
Grounds, who progressed through Middlesbrough’s academy, joined Birmingham from Oldham in the summer of 2014.
He made his Blues debut on the opening day of the 2014/15 season at Middlesbrough and has made a total of 140 appearances.