But Munster were pushed all the way with wing Kamile Ratuvou crossing for Saracens in a fine first-half.
And despite Glen Jackson Jackson's kicking heroics, it was O'Gara who had the last word to send Munster to the final.
Wayne Rooney has become only the second player to score 200 Premier League goals.
Tributes were pouring in for Sir Colin Meads on Sunday following his death from pancreatic cancer at the age of 81.
Stuart Broad moved up to second in the list of England's all-time leading Test wicket-takers as West Indies were thrashed
Conor McGregor will fight as a professional boxer for the first time when he meets Floyd Mayweather in a light-middleweight
Floyd Mayweather is expected to fight for the last time in his light-middleweight match-up with Conor McGregor on August 26.
Day/night Test cricket came to England for the first time at Edgbaston on Thursday.
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