Alan Brazil has warned Dermot Desmond that supporter patience is wearing thin at Celtic as frustration grows over the club’s slow summer transfer window. Celtic must submit their initial 25-man squad by August 13, with two further players permitted to be added before August 18. Speaking on talkSPORT, Brazil questioned whether the board have become too comfortable relying on the unwavering backing of the Celtic support. “But I think Dermot has said, I don’t know if he’s on record saying it, but I believe he’s said, ‘I’m not the bank. With key players such as Alistair Johnston and Arne Engels expected to leave, replacing quality with quality is no longer a discussion for later in the window.