Bowe, who was such a success for the 2009 British & Irish Lions in South Africa as both a wing and centre in the three Test series, joins fellow summer tourists Mike Phillips and James Hook in the Ospreys side to face his former club, Ulster.
The Ospreys kicked-off their Magners League campaign with a hard-fought win in Connacht and will be hoping to take a second Irish scalp in their first home game of the season at the Liberty Stadium on Saturday night.

Hayes, meanwhile, is the first of Munster's Lions to get back into action after he was called out to South Africa as a replacement tight head prop during the summer.

He will be hoping to give the reigning Magners league champions a boost after their opening day defeat in Glasgow last weekend.