Harlequins Conor OShea relishes European opener against Castres

French side have lost six of their first nine games Scrum-half Danny Care returns for Quins after birth of first child Dean Ryans club-by-club guide to the new tournamentThe Harlequins director of rugby, Conor OShea, is relishing another tilt at major French opposition when the European Champions Cup kicks off on Fridaynight.Quins will get the ball rolling by hosting the 2013 French champions and 2014 runners-up, Castres, at The Stoop. Whereas Quins are outside the Aviva Premierships top half, Castres have only two teams below them in the Top 14 and are 16 points behind the leaders, Clermont …