Auguy Slowik's stoppage-time try sees Jersey Reds become the first side to beat London Irish in the Championship this season.
Glasgow sign veteran South African prop Petrus du Plessis until the end of the season with two tight-heads injured.
London Irish sign Samoa international back row TJ Ioane following his release by Premiership side Sale Sharks.
Gloucester sign London Irish hooker Todd Gleave and give a new, undisclosed-length contract to fly-half Lloyd Evans.
Audio & Video
London Irish chief executive Brian Facer gives the latest on the club's planned return to London to play home games.
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