Hull have appointed Neil McDonald as the club's new assistant manager.
Tigers boss Mike Phelan had been looking to fill the role since former assistant Stephen Clemence's recent departure to team back up with Steve Bruce at Aston Villa.
McDonald, 50, has previously worked under Sam Allardyce at Bolton, Blackburn and West Ham and is a former boss at Carlisle and Blackpool.
In a short statement Hull confirmed: "The Tigers have appointed Neil McDonald as their new assistant head coach."
Phelan added: "I'm pleased to welcome Neil to the club and look forward to working with him.
"It was important that we added to the backroom staff here and Neil brings a wealth of football experience which will be of huge importance as the season progresses."
McDonald will go straight into the dugout alongside Phelan in Tuesday night's EFL Cup tie at Bristol City.
The former Newcastle and Everton defender, who also had spells as a player at Oldham, Bolton and Preston, began his coaching career with the latter before becoming Allardyce's first-team coach at Bolton in 2000.
After a brief stint as Iain Dowie's assistant at Crystal Palace he was appointed Carlisle manager in 2006 and had a short spell in charge of Swedish side Ostersund.
Another brief spell as head coach under Gary McAllister at Leeds was followed by a reunion with Allardyce at Blackburn, and he teamed back up with the former England head coach at West Ham after the pair had been sacked by the Lancashire club in 2010.
McDonald was appointed as Blackpool manager in December 2015 but left the club following their relegation to Sky Bet League Two at the end of last season.