After introducing Manchester United teenager Collier on loan, West Brom Director and the player himself made a speech.
West Brom Director Nestor said: "Collier is a dynamic midfielder. We are very optimistic about him and believe that his characteristics will greatly strengthen our already strong midfield configuration."
"He has excellent physical fitness, has the ability to advance and pass, and is an ideal midfielder in our tactical system. I believe he can bring real influence this season."
Collier added: "I talked to head coach Mason, and the first impression is very good. I think this is a place suitable for my development and the environment is very ideal. I hope to strive for as many opportunities as possible."
"This is a good opportunity for me, which can not only help the team, but also take my abilities further, and I am very excited about it."