VIDEO: Red-carded Farrell's tackling technique has 'improved'

REACTION: Owen Farrell may miss Saracens' Champions Cup quarterfinal with Leinster as a result of his flawed tackling technique, but Director of Rugby Mark McCall insists he has improved.

Farrell saw red on the hour mark in Saracens' surprise 18-28 Premiership loss to Wasps, catching Charlie Atkinson in the face when the sides were level at Allianz Park.

McCall's side plays Leinster in Europe on September 19, but the dismissal means they'll likely have to make do without the flyhalf in their biggest game since rugby's restart.'

"I watched it live but have not watched it on the video," McCall said.

"He was chasing his own kick and was desperate to make a tackle and clearly got it wrong and he got his red card.

"It is what it is.

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"He could easily have been out of the Leinster came for another reason - injury or whatever.

"He missed the last quarter-final of the Champions Cup because his wife was having their first child.

"We have got plenty of good backs at the club so we will just rearrange our backline a little bit and get on with it.

"He works really hard on all parts of his game and he has improved in that area.

"This incident was a little bit different because he was chasing a kick and trying to make a difference to his team. We hope the player he hit is OK."

Sources: AP & RugbyPass