Alviro Petersen will be particularly excited for tonights clash in the YB40 Group C as it will be his penultimate match for Somerset against the team he used to skipper - Glamorgan.
"We have played some good cricket in the YB40 competition and we will be looking to continue our success at Cardiff this evening," he said.
Somerset will be looking to win back-to-back games tonight in a match that will push them closer to the YB40 semi-finals.
They currently sit top of the group with 13 points from their non matches whereas Glamorgan have nine points for seven outings.
"The SWALEC is a good place to play and of course against old teammates the competition is always that bit fiercer so hopefully this time we will come out on top," he added.
The South-African will be returning to face his own side for the third time. In the 2012 season, he scored 144 for Essex against Glamorgan and this season with Somerset was bowled for one.
Wicketkeeper/batsman Craig Kieswetter will be looking for a second match-winning performance in two days after he inspired his side to victory of Gloucestershire on Sunday after scoring 126 not out.
Two wins this week for Glamorgan will put their level on points with Somerset at the top.
With only the group winner certain to progress to the semi-finals, the game will have everything to play for and determine whether Marcus North or Marcus Trescothick leads his team to Lord's final this year.
Glamorgan squad: Gareth Rees, Mark Wallace, Chris Cooke, Marcus North ( c ), Jim Allenby, Ben Wright, Murray Goodwin, Graham Wagg, Andrew Salter, Dean Cosker, Michael Hogan, Simon Jones and Alex Jones.
Somerset will name their team from the following: Marcus Trescothick, Jos Buttler, Nick Compton, Adam Dibble, George Dockrell, Lewis Gregory, James Hildreth, Craig Kieswetter, Steve Kirby, Craig Meschede, Jamie Overton, Alviro Petersen, Alfonso Thomas, Pete Trego and Max Waller.
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