Harlequins have appointed the head coach of Championship side Ealing Trailfinders, former England second row Alex Codling, as their forwards coach.
The 44-year-old - Quins' 2002 Player of the Year before starting his coaching career - had been at Ealing since 2016.
Head of rugby Paul Gustard told Quins' website: "I have known Alex for almost 20 years both as a player and a coach.
"He is very detailed around the line-out and clearly has a strong passion in this area. I'm delighted to have him."
Ealing's director of rugby Ben Ward commented: "I'm disappointed to lose Alex at this stage of pre-season.
"Once the offer came in and Alex informed me of his desire to move on things moved very quickly. I'm sure he will be a success at the Stoop."
Codling won his one and only England cap against Argentina in Buenos Aires in 2002.