Jose Mourinho claims Arjen Robben's World Cup diving displays prove referees should be able to use technology to make the right decisions.
Robben has escaped FIFA sanction despite admitting he dived in the first half of Holland's win over Mexico, although the Bayern Munich winger insisted he was fouled by Rafael Marquez for the clinching injury-time penalty and that he should have had a clear penalty in the first half.
Mourinho sold Robben to Bayern Munich when he was first Chelsea boss in 2007, after falling out with the winger over his spells on the treatment table.
And the Stamford Bridge chief, who always publicly defended Robben during his three year spell with the Blues, suggested the Dutch flier does go out of his way to con referees - who now need extra help to spot the cheats.
"Robben was my player and I know better than many what a fantastic player he is," said Yahoo Global Ambassador Mourinho.
"I also know that because of his speed and because of his creativity he is punished a lot with fouls by opponents who cannot stop him.
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"But I also know that sometimes he tries to get an advantage and he tries to get a free kick or he tries to get a penalty."
Mexico boss Miguel Herrara claimed Robben should have been dismissed for persistent diving and accused the Munich man and Portuguese referee Pedro Proenca of conspiring to ''invent'' the decisive penalty.
Mourinho added: "I think it's important for the players to help the referees and to help the referees means to be honest on the pitch, to be pure and the try to win the right way.
"But the reality is that not every player behaves that way and referees have a difficult job.
"If you have technology you can have a chance to have a fourth official watching on the video or screen situation."
Mourinho, of course, was on both ends of significant penalty box calls last term.
Referee Andre Marriner apologised to West Brom after awarding Ramires a last-gasp spot-kick when he ran into Steven Reid as Chelsea stole a draw at the Bridge.
But Mourinho then blamed referee Mike Dean and his assistants for awarding Sunderland the penalty that handed him his first home League defeat - and effectively ended Chelsea's title hopes - as Blues boss when Jozy Altidore tangled with Cesar Azpilicueta.
Mourinho feels the Robben debate has opened the door for more technology in the game to ensure a higher percentage of correct box decisions.
He said: "I think the referee should also be happy to have the chance in case of doubt, the chance to clear every doubt and the chance to make the right decision.
"Because when one country feels that one bad decision influences its future in the competition I think it's hard.
"I think it's important for coaches, for players but also referees. I think technology is something the referees would welcome."
Jose Mourinho is an exclusive analyst for Yahoo’s worldwide football coverage, www.yahoo.co.uk/worldcup is the only place to read all his expert opinions during the FIFA World Cup 2014.