England wing Chris Ashton could miss Six Nations after being cited

• Ashton accused of making contact with eye or eye area of Luke Marshall• Offence carries a minimum penalty of 12 weeksChris Ashton’s England comeback is in jeopardy after he was cited for allegedly making contact with the eye of an opponent during Saracens’ European Champions Cup victory over Ulster at Allianz Park on Saturday.The 39-cap wing will face a disciplinary hearing in London on Wednesday after being accused on making contact with the eye or eye area of the Ulster centre Luke Marshall in the 16th-minute of Saracens’ 33-17 victory that ensured they would have a home draw in the quarte…