Portsmouth defender Martin Cranie has been called up to the England under-21 squad for the friendly against Slovenia next week.The 21-year-old already has six England caps at under-21 level and will hope to make it seven next Tuesday. The game will be played at Hull Citys KC Stadium and will kick off at 7.45pm.Cranies last appearance came in a 2-0 victory France Jersey against Wales back in May at Wrexhams Racecourse Ground. He lasted the full 90 minutes and has recently impre sed under-21 manager Stuart Pearce.Pearce said, Its a strong squad and its a sign of our intent for the season coming up, not just for the under-21s but the seniors as well.The rest of the squad includes:Goalkeepers: Heaton (Cardiff City), Lewis (Peterborough)Defenders: Cranie (POMPEY), Gardner (Aston Villa), Mancienne (Chelsea), Onuoha (Man City), Richards (Man City), Taylor (Middlesbrough), Taylor (Newcastle), Wheater (Middlesbrough)Midfielders: Cattermole (Wigan), Huddlestone (Tottenham), Johnson (Middlesbrough), Johnson (Man City), Kightly (Wolves), Lennon (Tottenham), Milner (Newcastle), Muamba (Bolton), Noble (West Ham), OHara (Tottenham)Attackers: Agbonlahor (Aston Villa), Campbell (Man Utd), Derbyshire (Blackburn), Walcott (Arsenal) Croatia Jersey