The 30-year-old joined the Magpies in 2016 after starting his professional career with Arsenal and, during his time at St. James' Park, the midfielder made 171 appearances for the club in all competitions.

Most recently, he spent the second half of the 2024/25 season on loan with Championship side Portsmouth after spells with Standard Liège and Queens Park Rangers during the last campaign.

Everyone at the club thanks Isaac for his efforts while with Newcastle United and wishes him well for the future.