Wolfsburg's Patrick Helmes, pictured above, Twente Enschede's Marc Janko and Real Betis's Jorge Molina are all options under consideration. Even though Celtic have beaten Rangers to Polish striker Pawel Brozek – whose loan deal from Turkish club Trabzonspor will cost around £400,000, with an option to buy in the summer – Lennon still wants to add more power to his attack.