Roma beat Spurs 3-2 in the United States last night thanks to a dramatic late winner by 18-year-old striker Marco Tumminello.Two late goals by Harry Winks and Vincent Janssen appeared to have secured a 2-2 draw before the teenage substitute poked in a 93rd minute winner.Despite it being a pre-season friendly, Tottenham manager Mauricio Pochettino lost his cool early in the second half of the International Champions Cup encounter.Harry Kane was brought down in the box by former teammate Fazio and it looked a stonewall penalty - but the referee disagreed and waved play on.Following a string of questionable decisions, Pochettino lost his temper and was sent to the stands by referee Hilario Grajeda.Spurs fans certainly enjoyed their manager's rare show of emotion on the touchline and they especially enjoyed his refusal to go to the stands.

The referee, who earned very fans amongst Tottenham fans, went back on his orders after speaking to Pochettino.

In his post-match press conference, the Argentine boss revealed how he convinced the referee to change his mind.

"He wanted me to be sent [to the stands], but I said ''come on that makes no sense because we were talking in Spanish and nobody could understand us'," Pochettino said, as per football.london.

"It was all good I think. It was not a problem. I apologised to him about my behaviour.

"I believe it was a chat that ok, we were talking and started to speak louder."

Watch a Yahoo Sports video of the incident below.

Spurs conclude their pre-season tour in the US with an International Champions Cup fixture against Manchester City on Sunday.

They will then host Juventus in their new temporary home, Wembley, on August 5th before kicking off their Premier League campaign away at Newcastle United on August 13th.

Despite qualifying for this season's Champions League, Spurs are yet to make a single signing in the transfer market.

They're currently building an expensive new stadium and Daniel Levy's comments yesterday suggest Pochettino must rely on the club's academy for the time being.

"Regardless of the stadium project, today our position on transfers is that we have a coach that very much believes in the academy.

"Unless we can find a player who would make a difference he would rather give one of our academy players a chance so that's regardless of the financing of the stadium."