Tony Pulis accused Alexis Sanchez of diving and insisted Jay Rodriguez should have had a penalty in West Brom's 2-0 defeat at Arsenal.
A double from Alexandre Lacazette sealed the win for the Gunners at the Emirates Stadium and moved them back to within six points of Premier League leaders Manchester City.
There was a controversial moment in only the eighth minute when Rodriguez, having been brought down by Shkodran Mustafi in the Arsenal penalty area, got back to his feet and saw a shot tipped onto the post by Petr Cech, before Jake Livermore missed the rebound.
Pulis was far from pleased to see referee Bobby Madley refuse to award a spot-kick and felt Rodriguez was punished for being "honest", given that Sanchez had earlier won a free-kick in a dangerous position after going to ground following minimal contact from Craig Dawson.
"Everybody's seen what happened," the West Brom boss told Sky Sports. "If you want to make an example of something, with Sanchez, the first free-kick he gives on the edge of the box, he should be booked for diving.
"Then you see the tackle in the box on Jay, the referee has got a great view and it's a stonewall penalty.
"It's not only a foul, the player could be sent off as well. So it could be a penalty and them down to 10 men.
"Jake should score the rebound and we should score other goals, but the disappointing thing is Sanchez falls for the first free-kick and he should be booked. That's cheating.
"Jay is very, very honest and doesn't get any reward for being honest. We haven't had a penalty at this football club for over and a year and none of my players are told to roll around.
"The great thing is everyone has seen it and I don't have to talk about it, and I don't want to talk about it. I thought we played really well, we missed a lot of chances in the first half. We're disappointed."
Rodriguez insisted there was definite contact from Mustafi and defended his refusal not to make more of the incident at the time.
"I felt contact and obviously went down. It wasn't given, I got back up because I wasn't hurt and saw a chance to score and Cech made a good save," he said.
"For me, it was a penalty. It's disappointing.
"I'm not going to be rolling round and trying to buy free-kicks if it's not a free-kick. There was a decision there to be made and it's one of those things.
"If you get the goal, you're 1-0 up and it changes the game. We've got to move on and I thought we did well in the end."
Lacazette's second goal came from the penalty spot after Aaron Ramsey was bundled over by Allan Nyom in the same area, but the Wales midfielder felt the referee got his decisions right.
"I was up the other end of the pitch. I didn't quite see what happened but I'm sure there was contact, but the referee played advantage," Ramsey said of the West Brom appeals.
He added on Nyom's foul: "I thought I took it round him and he pushed me out the way. I think it was a penalty."
|Returning Ringrose added to Ireland Six Nations squad|
|Hummels wary of ´top European team´ as Bayern prepare for Besiktas|
|In-form Kvitova withdraws from Dubai|
|WATCH: ´Crazy´ Evra drives to West Ham training in London cab|
|Barca clash a chance for Chelsea ´to do things right´, proclaims Rudiger|
|Lucas claims Tottenham can win Champions League|
|Federer the ´complete player´ with number-one return - Schuettler|
|LeBron relishes one more link-up with Irving|
|Barcelona tie will not decide Conte´s Chelsea future, says Deco|
|Cordner signs bumper deal with Roosters|
|Lewandowski won´t be distracted by Real Madrid rumours|
|Bennett signs on until 2019 with England|
|Man Utd must not underestimate Sevilla - Navas|
|Coleman demolishes 20-year-old 60m world record|
|Red Bull reveal ´special edition´ livery on 2018 car|
|Iniesta will not be made welcome at Stamford Bridge, warns Azpilicueta|
|Ballack sees ´a big difference´ between Bundesliga and Premier League|
|Karmichael Hunt faces no conviction, but will remain sidelined|
|Betis boss would have preferred to face Madrid´s BBC|
|Chelsea v Barcelona: Messi´s blues against the Blues|
|James leaving Madrid was the best thing, says father|
|He´s looking good – Zidane thrilled with Ronaldo|
|It needs to take 30 seconds – Matic wants quicker VAR|
|Team LeBron edges Team Stephen in thrilling All-Star Game|
|McIlroy sees progress despite failing to contend at Riviera|
|Silver supports NBA players speaking out on social issues|
|Mickelson ready for Masters after third straight top-six finish|
|Gattuso: My job is to be the players´ nightmare until season´s end|
|I wasn´t good enough – Guardiola reveals Wigan rejection|
|Dillon reigns supreme with overtime win at Daytona 500|
|Bubba Watson ends drought with third Genesis Open title|
|Brazilian derby between Vitoria and Bahia abandoned after red-card frenzy|
|Anderson ends barren spell with New York Open triumph|
|It was crazy, but I like that - Zidane revels in eight-goal Betis thriller|
|Asensio credits Zidane for Madrid´s thrilling Betis comeback|
|Zidane hopeful over Marcelo hamstring injury|
|Overton replaces injured Plunkett for Blacks Caps ODI series|
|Bonaventura claims Milan can catch Inter|
|Bravo for Claudio! Guardiola to pick keeper at Wembley|
|Mourinho hoping for reinforcements at Sevilla|
|´Quick-healer´ Groves hopeful over shoulder injury|
|Real Madrid become first side to score 6,000 goals in LaLiga|
|Real Betis 3 Real Madrid 5: Asensio at the double in LaLiga classic|
|AC Milan 1 Sampdoria 0: Bonaventura makes it 10 unbeaten for Rossoneri|
|Schurrle excited to finally link up with Reus and Gotze|
|Fit-again Hughes included in England squad|
|New number one Federer revels in ´unbelievable´ week|
|Real Madrid defender Marcelo suffers hamstring injury|
|Costa fumes referees ´want to give me a card´, but Simeone plays down penalty row|
|Thiem regains Argentina Open title|
|Stoger makes Dortmund history with Gladbach win|
|Championship Review: Leeds fight back for point, Norwich & Ipswich share derby spoils|
|Racing beat La Rochelle to go second, Castres edge out Bordeaux|
|Borussia Monchengladbach 0 Borussia Dortmund 1: Burki unbeatable as Reus returns to haunt Foals|
|FA Cup ´magic´ no surprise to Pochettino after Rochdale thriller|
|Rochdale hero Davies: This is every kid´s dream|
|Atletico Madrid will not stop in pursuit of Barcelona, promises Gameiro|
|Banks boot pays dividends for Treviso|
|Lucky 13 and second successive title for Kvitova after Muguruza classic|
|´Wrong image´ to blame for VAR confusion in Manchester United´s FA Cup win|
|Rochdale 2 Tottenham 2: Davies denies Kane in FA Cup classic|
|Rieder stretchered off as Wasps extend Chiefs´ slump|
|Atletico Madrid 2 Athletic Bilbao 0: Gameiro and Costa settle cagey clash|
|NHL commissioner Bettman condemns ´reprehensible´ Smith-Pelly abuse|
|Visser, Scott and Nel among six recalled by Scotland|
|Bhuvneshwar and Dhawan inspire India´s Wanderers win|
|Napoli set club record with another Serie A win|
|Froome disappoints in time trial as Wellens wins Ruta del Sol|
|Napoli 1 SPAL 0: Allan sends hosts top of Serie A again|
|Federer makes short work of disappointing Dimitrov|