Full name: Kevin Joseph O'BrienBorn: March 4, 1984, Dublin, IrelandCurrent age: 26 years Major teams: Ireland, Ireland Under-19s, Marylebone Cricket Club Young Cricketers, Middlesex 2nd XI, NottinghamshireBatting style: Right-hand batBowling style: Right-arm medium-fastRelation Brother: NJ O'Brien The O'Brien brothers are probably Ireland's most well-known cricketers. The younger of the two, Kevin, is a true workhorse for the Irish cause. A stockily built medium-pacer and a classy middle-order batsman, he represented Ireland at the 2004 Under-19 World Cup in which he racked up 241 runs and also struck 35 from 48 balls against England on his ODI debut. Like many of Ireland's batsmen, he had a productive time in Kenya during the 2007 World Cricket League when he was the second-top-scorer with 263 runs at an average of 52.80, including a delightful 142 from 125 balls against the hosts. The next tour for O'Brien was the 2007 Cricket World Cup in the Caribbean and it would be his biggest test yet as 6 of his 7 One Day International games prior had been against non Test playing nations. Their opening game against Zimbabwe finished in a tie when Zimbabwe collapsed in the dying stages. O'Brien came on to bowl in the 49th over with Zimbabwe requiring 9 runs from 12 balls and 3 wickets in hand. His first ball was a full toss but Zimbabwean captain Prosper Utseya hit it straight to Eoin Morgan at cover to give him his first World Cup wicket. Chris Mpofu was run out off O'Brien's final delivery and he finished the penultimate over with a wicket maiden. Ireland came up against Pakistan in the next game and they restricted the Test nation to just 132 with O'Brien taking the wicket of Shoaib Malik. O'Brien came in to bat with his side at 70/4 and he added 38 runs with his brother Niall. Ireland eventually won by 3 wickets and O'Brien finished unbeaten on 16 from 52 balls. His highest score of the tournament came in the Super Eight stage against New Zealand where he made 49, hitting 3 sixes. He missed out on his half century when he was run out by his brother. Arguably his best performance of the 2007 Cricket World Cup was his fast 48 runs scored against Bangladesh which helped secure a historic Irish victory.On 8 June 2009, O'Brien guided Ireland to an impressive victory over Bangladesh in the Twenty20 Cricket World Cup.His excellent all-rounder abilities are reflected in his statistics: 52 ODIs have brought him 1336 runs at 34.25, and 43 wickets at 30.20. He is definitely one to watch in a team that has a reputation as giant-killers.