Pro12 highlights: Munster 21-20 Ulster

Highlights from the Pro12 Irish derby at Thomond Park as Munster run out 21-20 winners over Ulster after Ian Humphreys misses a last-minute conversion.

Four Humphreys penalties put Ulster 12-0 up before Robin Copeland's try helped cut the margin to four at the break.

Duncan Williams's try left Munster 13-12 ahead at Thomond Park before Ian Keatley added eight further points.

But Stephen Archer's sin-binning led to another Humphreys penalty and Nick Williams barged over for a last-minute try before the missed conversion.

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