Watford's fightback, completed by Abdoulaye Doucoure in the last minute here, was secured by a handball that was not spotted by the officials.
On Saturday, Pellegrino was left in no doubt that VAR would have corrected a glaring miscarriage of justice when replays showed that Doucoure had stooped to bundle the ball home with his head but ended up using his right palm.
Video assistant referees are being trialled in domestic cup competitions over the next few months, beginning with the FA Cup third-round tie between Brighton & Hove Albion and Crystal Palace earlier this week, but a frustrated Pellegrino now wants to see it rolled out in the English top flight.
However, it is still some way off from appearing in the Premier League. VAR comes in we probably wouldn't get that but we got it.
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If I get him in the trouble Klitschko had him in, there is no chance for him. "He won't be able to recover against me". Cardiff is the current frontrunner to stage the battle on March 31 at the Principality Stadium.
Yet Saints manager Mauricio Pochettino was still able to express his disappointment in measured terms. "We are very sad but we have to accept the rules".
"I never see this type of mistake in the Premier League before".
"From the bench it is more hard to see but the referee and the linesman are closer".
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The Labor Department said its Consumer Price Index excluding the volatile food and energy components rose 0.3 percent last month. The next tests for companies will arrive in coming weeks, as they report their results for the last three months of 2017.
The draw - and a win for West Brom - left Swansea still at the foot of the Premier League table, four points behind 17th-placed Bournemouth. "Nothing, only talk about this", said Swansea boss Carlos Carvalhal.
"This is one of the situations VAR will in the future say "clear penalty" - it will be clear".
"I understand Southampton are unhappy like I was not one time, more than one time when the mistake is against us".
Chelsea manager Antonio Conte and Arsenal counterpart Arsene Wenger questioned aspects of VAR after their goalless draw but their criticism was based on technical matters surrounding its use rather than the concept of the system itself.
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Speculations doing the rounds that Google Duo , Google's video calling app, works on devices that don't have the app installed. But, most of the Google messaging apps are caught up in a hitch at this stage, pushing few users towards either Allo or Duo .
Amid speculation some sort of VAR could be in place at this year's World Cup in Russian Federation, the problems in France included both a failure to make a referee's watch vibrate to confirm a goal had been scored and the reverse issue, when the match official's watch vibrated when the ball was held by a goalkeeper well before it had crossed the line.