An LTA statement said: "This is a very concerning situation, and we have written to the WTA offering our assistance in their efforts to establish the safety and wellbeing of Peng Shuai. "I don't think words can ever adequately describe what Bertie meant to the club and our supporters. He was a giant of a player, a giant of a man and quite simply Mr. Celtic," said Celtic chairman Ian Bankier. "He was very loveable. I think he was a brother to everyone. He treated everyone like he was family, within five minutes you're family. Not one person ever had a bad word about him." "We exchanged a few messages on social media and said we should have a chat, then I forgot all about it. Then my phone rang one day and it was Greg.