Boss Sergej Jakirovic has cast doubt over whether Hull City will return with a second offer for Swansea City striker Zan Vipotnik. News emerged on Monday that Hull, who won promotion to the Premier League last season, had seen a bid for Vipotnik rejected by Swansea. Vipotnik netted 25 Swansea goals last season – including 23 in the league – and scored three times for his country.