In a statement on social media, Cliftonville manager Jim Magilton paid tribute to Newberry, who he described as a “remarkable young man”.
“He brought the same passion and determination to every training session and match,” said Magilton.
“Winning mattered deeply to him but so did the love for the game and bonds he formed with team-mates.”
Magilton added: “His loss is felt not only in Northern Ireland, but across every club he represented. He will be deeply missed by everyone who had the privilege of knowing him.”
Linfield said: “The thoughts and prayers of everyone at the club are with Michael’s family and friends at this very sad time.”
The NI Football League said they pass on their “heartfelt condolences to Michael’s family, friends and everyone connected with Cliftonville Football Club at this sad time”.
NIFL chairman Gerard Lawlor explained that Monday night’s four remaining games went ahead after consulting the player’s family.
He said: “We spoke to Michael’s [Newberry] family today. Michael’s family wanted the games to go ahead, they felt Michael would have wanted the games to go ahead.
“What better way to honour such an amazing young man than to play football and to honour him in that field of play.
“We will honour him before all our four games this evening. Today has been a very tough day in the Irish League family.”