With Premiership champions Saracens automatically relegated to the 2020/21 Championship, Ben Ward's Ealing have recruited vastly experienced players.
Former Harlequins winger Charlie Walker scored a try in each half as Zebre claimed a 41-13 bonus-point win over Cheetahs.
Former England sevens player Charlie Walker was on the look-out for a new club and he is now set to trade Harlequins for a stint in the PRO14.