Captain Callum McGregor is trying to protect team-mates from the “outside noise” of off-field turmoil amid a challenging period of “negativity, change and disruption” at Celtic. The Scottish champions are going through a transitional phase on the pitch and major strife off it, although some certainty is set to come with the expected appointment of Columbus Crew’s Wilfried Nancy as head coach. Celtic, under interim boss Martin O’Neill, came close to dropping points for the fifth time in 12 Premiership games on Saturday but McGregor crashed in a brilliant 95th-minute winner to narrow the gap on Hearts to four points with a game in hand.