Patrick Kelly joined West Ham United on a three-year professional deal from NIFL Premiership club Coleraine in July 2022.

Kelly made himself a regular in the West Ham United U18s since his move and earned his first appearance for the U21s in an EFL Trophy group stage win at Walsall on 30 August 2022, before making his first Premier League 2 appearance away to Manchester City a few days later.

The Northern Irish midfielder enjoyed a positive 2022/23 season with Kevin Keen’s U18s, featuring 19 times for the side across all competitions. Kelly played a key role in the side’s historic double as the young Hammers won the FA Youth Cup and the U18 Premier League South.

During the 2022/23 season, Kelly played a key role in the young Hammers' successful campaign which saw them finish second in the Premier League 2 regular season and reach the Round of 16 in the EFL Trophy.