Morecambe defender Christian Mbulu has died at the age of 23, the League Two club have confirmed.
Having started his career with non-league Brentwood, the centre-back joined Millwall and had a loan spell at Braintree before joining Scottish Premiership side Motherwell.
Mbulu made seven appearances for Crewe after signing a short-term deal in October and signed for fellow League Two side Morecambe in January until the end of the season, making three appearances.
Crewe expressed their shock and sadness at the sudden death of Mbulu, who they said will be "sorely missed because he was a top bloke, who had a real love for the game".
Motherwell chairman Jim McMahon echoed those sentiments about their former player.
The Professional Footballers' Association added on Twitter: "Our thoughts are with Christian Mbulu's family and friends at this very sad time." 262224 MAY 20