Lisandro Martinez suffered a disastrous 83-second meltdown at Stamford Bridge as 10-man Manchester United fell to a 2-0 defeat against Chelsea, heaping immense pressure on head coach Michael Carrick. United had produced an improved first-half showing but failed to capitalize on four major opportunities, with Bruno Fernandes and Amad missing the target while Blues goalkeeper Mike Penders pulled off two vital saves. After Morgan Rogers broke the deadlock for the hosts after the interval, Martinez's reckless sending-off with 27 minutes of normal time remaining effectively crushed any hopes of a Manchester fightback.
Already carrying a yellow card, the 28-year-old Argentine defender leapt into Wesley Fofana at the back post as Estevao delivered a corner, catching the Chelsea player in the face with an elbow without making any attempt to play the ball. Following an intervention from video assistant referee James Bell, referee Peter Bankes consulted the pitchside monitor before handing Martinez a second yellow card and awarding a penalty. World Cup final official Darren Cann branded the defender's challenge "inexplicable" and needlessly reckless, confirming he was rightly dismissed.
Martinez ignored coach Jonny Evans as he headed down the tunnel, while Carrick chose not to look at his defender, instead deliberating with assistant Steve Holland. The incident drew sharp condemnation from pundits, with Joe Cole stating on TNT Sports that Martinez is "at the scene of the crime too often" and suggesting his time at Old Trafford has run its course. Former defender Stephen Warnock echoed the sentiment on BBC Sport, noting that while Carrick's side were still in the game at 1-0, Martinez's ongoing mistakes made United's task impossible once they were two goals down with ten men.
United narrowly avoided a third consecutive three-goal loss—having recently suffered heavy defeats to Como and Bournemouth—only because an Estevao effort was disallowed by VAR for offside. However, Carrick's side are now winless in nine matches across all competitions, marking their worst sequence since the 1988-89 season and leaving them hovering just above the relegation zone. With Martinez now suspended for next Sunday's league clash with Aston Villa, United must quickly regroup before hosting Serie A club Roma on Tuesday to keep their Champions League qualification hopes alive.