Transfer speculation heats up at Parkhead, Rangers new signings may face wait for debut and Hearts look to season ticket holders to pay tax bill. Amido Balde and Kevin Doyle are Celtic's top signing targets as Neil Lennon braces himself for the loss of Gary Hooper (Mail) Rangers new signings may face debut wait The Ibrox club's new signings may have their competitive debuts delayed until September 1 as the potential rule book for the proposed new league set up would prevent the use of trialists in any league or league cup matches. The SPL could block Danny Wilson's switch to Hearts as the transfer has not been officially sanctioned by the league. The SPL can block transfers if they believe the club has acted improperly. Hearts could face a winding-up order unless a £100,000 tax bill in paid. Record Dundee United consider move for Stephen McManus Dundee United manager Jackie McNamara is considering a move for former Celtic team-mate Stephen McManus, 30, to help shore up his defence. McManus is a free agent after leaving Middlesbrough Motherwell striker Henrik Ojammaa faces being kicked out of the national side after missing 3 friendly matches and then being spotted watching a Lech Poznan match.