Manou was a successful junior cricketer, who won the Player of the Tournament award when captaining South Australia at the 1997–98 national under-19 carnival.
Domestic career
He made his first-class debut on 22 March 1999 playing for the Australian Cricket Academy against a Matabeleland Invitational XI at Queens Sports Club in Bulawayo. In the 1999–2000 Australian domestic season, Manou replaced the retired Tim Nielsen in the South Australian side as wicket-keeper for the Pura Cup and Mercantile Mutual competitions. Although he impressed with the gloves he struggled with the bat as he scored ducks in four of his first five innings, including a pair against the touring Pakistanis. His batting has improved since then and in 2003–04, when given an opportunity to open the batting, Manou posted a score of 130. He later bettered this in 2007–08 when he scored 190 against Tasmania in a Pura Cup game at the Bellerive Oval. In 2004–05, Manou was appointed vice-captain of the Redbacks and when Darren Lehmann was either on national duty or injured he would be the stand in captain. He led from the front with 433 runs and 36 dismissals. In 2005–06 he took a personalbest of 42 Pura Cup dismissals along with 21 in the ING Cup. With the bat he has twice collected $50,000 for his team by hitting the ING sign on the fence. In season 2008–09, Manou scored 647 runs at an average of 46.21 with a highest score of 124 in Sheffield Shield competition leaving him on the verge of Ashes squad selection. His fine season was capped off with the honour of being selected as the vice captain for the Domestic Sheffield Shield, One Day and Twenty-20 teams of the year.
International career
He was named in the 2009 Ashes squad, and subsequently made his Test debut in the 3rd Test at Edgbaston, after Brad Haddin broke his finger during the warm-up; making Brad Haddin the first Australian wicketkeeper to miss a test since Ian Healy broke his thumb in 1994. He claimed his first dismissal when he caught Alastair Cook off the bowling of Peter Siddle. During his first innings in the same match he was bowled by James Anderson for just 8 runs. On 31 October 2009, Manou made his one day international debut against India when he was called upon to replace Tim Paine, who had himself been called up as a replacement, after Paine broke a finger.