The Manchester United star was involved in a challenge with Slovenian defender Bostjan Cesar who suffered an ankle injury during the incident and had to be substituted.

Referee Jonas Erikkson pointed to the spot and Frank Lampard made no mistake to put England on their way to victory.

But, in a week where diving by players has been in the spotlight, West Brom midfielder Koren was unhappy with Rooney's actions.

Koren told Press Association Sport: "We need to see the replay but we have been talking in the dressing room and we think it was not a penalty.

"This week there has been a lot of talking about diving, about Eduardo.

"Today, I think Rooney went down a bit too easy and let's see if someone will say something against him."

Slovenian keeper Samir Handanovic felt that Rooney should even have been yellow-carded for his part in the incident.

He said: "It was no penalty. Both players were fighting for the ball. In the end Rooney literally fell into Cesar and I think it was a clear foul against our player.

"Maybe Rooney should have been yellow-carded."

Rooney declined to stop and comment when the criticism of him by the Slovenian players was put to him after the game.

Koren also believes that Eriksson was kindly disposed towards England with some of his decisions during the game.

He said: "My personal opinion is the referee was under a little bit of pressure because of the crowd and the England team. That penalty was a little bit too easy, I think.

"When the referee is in charge between these two teams, the English team is a big team and the referee gave them a bit more credit (favour) I think."

A second half goal from Jermain Defoe - his fifth in three internationals - put England 2-0 ahead before the visitors grabbed a late consolation effort.

Defoe said: "Everything seems to be going in for me at the moment and, of course, I want to start every game - but it is down to the manager."