Matthew Wells and Stephen Rowbotham won Britain's first Olympic-class sculling medal for more than 20 years with bronze at the 2006 World Championships in Eton
Their rivals for gold are likely to be New Zealand's Nathan Cohen and Rob Waddell (the Olympic singles winner in 2000) and world champion veterans Iztok Cop and Luka Spik of Slovenia.
Wells (left in main pic), 29 from Bradford, is at his third Olympics after coming ninth in the single scull in Sydney and seventh in the double four years later.
Rowbotham, 27 from Swindon, narrowly missed selection for Athens but was successful in the quad in 2005 before joining up with Wells.
Wells has admitted he and Rowbotham are "like chalk and cheese" and admits they "really didn't get on" when put together for the first time.
The men's doubles heats start at 1000 BST on 9 August, with semis four days later and the final at 1010 the following Sunday.
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