Diarmuid Kilgallen's try with 7 minutes remaining sealed a memorable comeback victory for Connacht in the first interpro derby of the season.
The home side came from 20-3 down to record a 22-20 win over Ulster at the Sportsground.
That result means Peter Wilkins' side are the only team to win their opening three United Rugby Championship matches this season.
Thrilling comeback from Connacht to see off Ulster
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