THE FA will probably review Marcos Alonso’s X-rated challenge on Shane Long.

That is the view of former Premier League referee Dermot Gallagher, following the Chelsea star’s first-half foul on the Saints striker at St Mary’s on Saturday.

Referee Mike Dean did not see Alonso rake his studs down the back of Long’s calf and went on to spark Chelsea’s sensational comeback with the assist for his side’s first goal.

If Alonso is given a retrospective ban by the FA, he would miss this Sunday’s FA Cup semi-final between the teams at Wembley.

Gallagher told Sky Sports: “It’s a red card.

“I think he’s probably too close. I don’t think he’s got the right angle.

“I think what will happen now is the FA will say to him, ‘have you clearly seen it?’

“Well, he clearly hasn’t seen it or he will have given a foul.

“What I’d say is that if he’d seen it he’s going to give it.

“We’ve all seen it and we’d judge it as a red card offence.

“It’s something he hasn’t seen.

“It’s an unseen incident and it can be referred later. He will obviously say no and then the FA can proceed if they want to.”