Philippe Coutinho made a dream debut for Aston Villa as the Brazil star’s late equaliser capped a thrilling fightback from two goals down against Manchester United in Saturday’s 2-2 draw.
United made the perfect start thanks to Martinez’s blunder in the sixth minute.
Fernandes’ 25-yard free-kick left Martinez red-faced as the Villa keeper got both hands on the ball, only to let it drop through his legs and trickle over the line.
Martinez may have been slightly unsighted by United striker Edinson Cavani as he stretched to make contact with the set-piece, but it was still a horrendous mistake.
The former Arsenal keeper partially redeemed himself when he charged off his line to block Mason Greenwood’s close-range effort.
Alex Telles tested Martinez’s nerves with a swerving free-kick, but this time he saved well.
David De Gea preserved United’s lead with an instinctive save from Emiliano Buendia’s thumping header.
Lucas Digne made his Villa debut after signing from Everton this week and the French left-back was denied a dream start when De Gea turned away his rasping strike.
De Gea plunged to his right to keep out Ramsey’s low drive after his exchange of passes with Morgan Sanson carved open United’s defence.
United doubled their lead in the 67th minute when Fred seized on Sanson’s wayward pass and fed Fernandes, who blasted a ferocious finish into the roof of the net from 12 yards.
But Coutinho came off the bench moments later to completely change the tone of the match.
It was Coutinho whose incisive pass found Ramsey in the United area, giving the midfielder the chance to fire past De Gea from close-range in the 77th minute.
With Villa Park rocking and United suddenly in disarray, Coutinho raised the roof five minutes later.
Ramsey returned the favour with a perfectly-weighted cross that evaded the United defence and gave Coutinho a simple tap-in at the far post.
At Carrow Road, Norwich moved off the bottom of the table to leave Benitez fighting to save his job.
Dean Smith’s side took the lead in the 16th minute with their first goal in seven matches since November.
Everton defender Michael Keane stuck out a foot to block Josh Sargent’s low cross, but instead diverted it into his own net.
Just 90 seconds later, Brandon Williams picked out Adam Idah and the young forward poked past Jordan Pickford.
With fans waving a ‘Benitez get out of our club’ banner, Brazil forward Richarlison reduced the deficit with an audacious overhead kick on the hour mark.
It wasn’t enough and Benitez, already disliked after his spell with Everton’s Merseyside rivals Liverpool, is in deep trouble with his team only six points above the relegation zone.
Watford rescued a 1-1 draw at fellow strugglers Newcastle thanks to Joao Pedro’s late leveller.
Allan Saint-Maximin gave Newcastle the lead in the 49th minute, pouncing on Jeremy Ngakia’s slip and jinking past two defenders before drilling a superb low strike beyond Ben Foster.
But Newcastle couldn’t add a killer second goal and Pedro made them pay with an 88th minute equaliser, the Brazilian thumping a header past Martin Dubravka from Kiko Femenia’s cross.
Newcastle, who gave a debut to New Zealand striker Chris Wood after his move from Burnley, slipped to second last and remain two points behind fourth-bottom Watford.
Newcastle boss Eddie Howe has managed only one league win since replacing Steve Bruce in November.
Wolves beat Southampton 3-1 at Molineux to extend their unbeaten league run to four games.
Raul Jimenez gave Wolves the lead with a 37th minute penalty awarded for Jan Bednarek’s foul on Rayan Ait-Nouri.
Conor Coady got their second in the 59th minute before Southampton’s James Ward-Prowse netted with an 84th minute free-kick.
Adama Traore wrapped up the points for Wolves in stoppage time.