Lancashire Police have reported the sad news that Morecambe defender Christian Mbulu has passed away at age 23.
He played three games for the club.
A Lancashire Police spokesperson is quoted as saying: "We were called at around 1.30pm today (May 26) to an address on Greenfinch Avenue, Cottam, to reports of a sudden death.
"We attended and sadly found the body of a man aged in his 20s.
"There are not thought to be any suspicious circumstances surrounding his death and a file will be passed to the coroner in due course.
"Our thoughts are very much with his family and friends at this sad time."
Morecambe said in a statement: "He was only 23 and the news of his sudden and untimely passing has been a shock to us all.
"Christian came to the club in January and proved to be an extremely popular member of the squad.
"His loss will be painfully felt by all who had the pleasure of knowing him."
Millwall academy director Scott Fitzgerald said: "This is truly shocking and tragic news and our hearts go out to Christian's family and friends,".
"Christian was incredibly popular with team-mates and staff alike during his time here and looked set for a very bright and successful future in the game. He was thoroughly professional, hard-working and courteous and remained in close contact with many people within the club.
"All of us have so many fond memories of Christian from his time with Millwall and it had been so encouraging to follow his progress and development as a player from afar. We are truly shocked and saddened by this horrific news."