Romelu Lukaku did not celebrate his goal against former team West Brom due to his love for the club, according to Manchester United manager Jose Mourinho.
Lukaku opened the scoring in United's 2-1 win at The Hawthorns on Sunday, heading home Marcus Rashford's left-wing cross.
But the Belgium international refused to celebrate his 10th Premier League goal of the season despite being mobbed by team-mates, leading to post-match criticism from television pundits Gary Neville and Jamie Redknapp.
And Mourinho defended Lukaku, who scored his first Premier League goals at West Brom in a successful loan spell from Chelsea as a teenager.
"I didn't celebrate too - and nobody was happier than me," Mourinho told Sky Sports.
"I'm happy with the victory but, 15 years ago, I look at myself - how I used to celebrate goals. With maturity you control your emotions better. Unless you score a winning goal in the last stage of the game.
"But basically, Romelu had the fact he was a happy kid at West Brom. He was given the conditions to have the evolution he had, so maybe at the back of the mind it was his love for the club."
West Brom remain winless in four league games under new boss Alan Pardew, although they at least scored the first goal of his reign thanks to Gareth Barry's consolation.
And the former Newcastle and Crystal Palace manager accepted responsibility for his side's 2-1 defeat to second-placed United, with West Brom having lacked energy prior to a strong finish.
"Better shape to the team, better legs a little bit," Pardew told Sky Sports when asked why United had run out winners.
"The team I picked - in hindsight it wasn't the right team and I should have put some fresher legs in. They had put in such a shift at Liverpool [in Wednesday's 0-0 draw] and I wanted to show faith in them, as their new manager.
"But maybe I should have made two or three changes. We looked leggy and not up to the ball. But in the second half we were a lot better and had a lot more conviction in our play.
"We had a full stadium, playing Manchester United, and we didn't ever get the crowd going. The crowd, quite rightly, were fairly quiet today and that was down to us. When you're at home, you've got to generate more excitement - more moments - than we did today.
"We've got to take risks - you can't play this game unless you take risks. We just had a lack of energy and, as I say, I've got to take some blame for that."
|LeBron James determined to work through ´very challenging´ Cavaliers season|
|Leganes 0 Real Madrid 1: Asensio´s late goal lifts pressure on Zidane in Copa quarter-final|
|Toulalan follows Gourvennec out of Bordeaux|
|Texans DE J.J. Watt showing positive signs with rehab|
|CC Sabathia likes the Yankees being a ´hated team´ again|
|UCI president wants Team Sky to suspend Froome|
|Dortmund´s Durm suffers torn ankle ligaments|
|Chelsea send Nathan to Belenenses on loan|
|Chelsea in talks over deal for Roma full-back Emerson|
|Gravel for breakfast but no worms on Dyche´s menu|
|Harden to return for the Rockets against the Timberwolves|
|Dybala is no Messi - Laudrup thinks comparisons are unfair|
|Jones insists weakened England can challenge for Six Nations hat-trick|
|McIlroy feeling ´a little different´ but happy with injury return|
|Dortmund leave Aubameyang out amid Arsenal links|
|Federer requested night match to avoid Melbourne scorcher|
|Koulibaly would stay at Napoli ´forever´|
|Mentor De Villiers hopes Proteas proteges ´remember that old guy´|
|Shenzhen to host WTA Finals|
|Neymar´s PSG contract has no release clause, lawyer claims|
|Robben relaxed over Bayern contract talks as other clubs circle|
|Henderson returns to Liverpool training|
|Football´s biggest release clauses - Pique joins Messi, Ronaldo and LaLiga´s big boys|
|Australia call for Carey, Hazlewood out of Gabba ODI|
|Defending champion Fleetwood upstages McIlroy, Johnson|
|No offers for Evans yet, says West Brom boss Pardew|
|Halep not feeling the pressure|
|Stafylidis seals Stoke switch|
|I was dying on court - Monfils questions decision to play in Melbourne heat|
|Birthday girl Kerber sets up Sharapova clash, misery for Muguruza|
|Federer marches on, Djokovic beats the heat but Wawrinka bows out|
|Worry about your own team - Dortmund slam Wenger´s Aubameyang pursuit|
|Fabulous Federer eases past Struff|
|Praet denies agreeing deal to join Juventus|
|No BBC for Real Madrid´s Leganes clash|
|Wawrinka discovers Tennys has game to go with the name|
|Heat hit historic low in defeat to Sixers|
|Stoke close to Stafylidis signing|
|Brisbane Roar 3 Perth Glory 2: Holman settles five-goal thriller|
|Gourvennec leaves Bordeaux after seventh defeat in eight games|
|Eight uncapped players make squad for England´s Six Nations opener|
|Stokes court date on same day as supposed England comeback|
|Pique agrees new long-term Barcelona contract|
|Wenger rules out Ozil sale as talks continue over Wilshere deal|
|Halep eases past struggling Bouchard|
|Sanchez-Mkhitaryan deal close, says Wenger|
|Retiring veteran Benneteau dumps Goffin out|
|Meunier blasts ´disgraceful´ PSG fans after Neymar boos|
|Pique demands better at Camp Nou after Espanyol ´insults´|
|Djokovic outlasts Monfils in Melbourne heat|
|Wizards get in scuffle in blowout loss to Hornets|
|Schweinsteiger re-signs with Chicago Fire for 2018|
|Rockets´ Ariza, Green suspended|
|Sharapova happy with improvement|
|Muguruza stunned as upsets continue at Australian Open|
|Juve trying everything to sign Can, says Marotta|
|He´s scared of me – Ferrell reveals Federer fears|
|Konta crashes out in shock Aus Open defeat to lucky loser|
|Brady limited in practice due to hand injury|
|Sharapova overcomes Sevastova in Melbourne|
|Rooney convinced me to join Everton – Walcott|
|Simeone: Sevilla deserved their win|
|Conte calls for VAR improvements|
|Neymar not angered by PSG whistles - Silva|
|FA Cup Review: Wigan dump Bournemouth out, nine-man Chelsea scrape through|
|Banvit beat Bayreuth to stay top as Gaziantep end losing streak|
|England won´t block Jones from Lions role|
|Valverde rues Barca profligacy in Espanyol defeat|
|Chelsea 1 Norwich City 1 (aet, 5-3 pens): Hazard and Caballero seal Blues progression|
|No generosity from Neymar as Cavani waits to make PSG history|