Leaders Ulster suffer their first defeat in the Pro12 as champions Connacht run out deserved 30-25 winners in Galway.
Pro12 leaders Ulster make it five wins out of five as Ospreys suffer their second successive defeat.
Rory Scholes, Andy Warwick, Rob Herring and Nick Williams come into the Ulster side for the Pro12 clash against Connacht in Galway.
Ulster stay on course for a Pro12 play-offs place and dent Connacht's European qualification hopes by winning in Galway.
Ulster boost their hopes of a place in the Pro12 play-offs as they end the six-match winning run of leaders Connacht in a bruising Kingspan Stadium contest.