Coventry began life without Gustavo Hamer with a convincing win against out-of-sorts Middlesbrough.
The Sky Blues midfielder joined Sheffield United on the eve of the game but his former side registered their first win of the campaign courtesy of instinctive goals in either half from Matty Godden and club record signing Haji Wright.
Darragh Lenihan's stoppage-time own goal capped a miserable afternoon for Michael Carrick's side who are winless in their last seven Championship games - four of those coming against Coventry who beat them in last season's play-off semi-final.
It's the first time Boro have lost their opening two league games since 2007.