Warned and fined in February over his conduct after he was caught nicking a bottle of vodka at a nightclub, Cipriani was then dropped for breaching team protocol by going out on the town following last month's defeat to the Waratahs. He was then also omitted from the squad for the forthcoming two-game trip to South Africa after it emerged that he missed training following another late night out.
After yesterday's announcement that the Rebels' players and management had "lost confidence" in the former England stand off, it was thought that Cipriani faced the sack. It appears, however, that the Rebels have decided on an alternative course of action.
Lewsey, who recently came out of retirement to help his old club Wasps, famously knocked Cipriani out cold following a training ground bust-up in October 2008.
He is said to be "relishing" his new role.