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The former United defender has impressed for West Brom since joining the Baggies in 2015 and City boss Pep Guardiola is eager to take the Northern Irishman to the Etihad this summer.
Guardiola's interest in the 29-year-old has surprised some City fans, but Robson insists it is a shrewd move by the Spaniard.
The Red Devils legend rates Evans highly and said he should never have been allowed to leave Old Trafford in the first place.