SCOTLAND number eight Ryan Wilson has been cited for making contact with the eye area of England’s Nathan Hughes.

The alleged offence took place shortly before half-time of Scotland’s 25-13 NatWest 6 Nations victory at Murrayfield on Saturday.

Television cameras caught the back rows clashing off the ball with Wilson, who was pinned to the floor, raking his right hand across the right side of Hughes’ face.

Wilson must appear before a disciplinary hearing tomorrow to answer for an offence that carries a low-end sanction of a four-week ban, rising to 12-plus weeks.

It places his involvement in the remainder of Scotland’s title bid in grave doubt with fixtures against Ireland and Italy remaining.

Wilson was involved in a tunnel scuffle with Owen Farrell before the match at Murrayfield but Six Nations Rugby is seeking clarification on that incident through the unions.

England flanker Sam Underhill has escaped a citing after being shown a yellow card for a no-arms tackle in the latter stages of the Calcutta Cup match.

Meanwhile, England have called Elliot Daly and Kyle Sinckler into their training squad for the first time in this year’s tournament.

The pair are present among a group of 27 players who will be involved in camps scattered across Oxford, Bagshot, Leicester, Saracens and Wasps because of the sub-zero weather conditions.

Daly is recovering from a calf problem sustained after he had injured his ankle, the ailment that prevented him from appearing in the victories over Italy and Wales.

Sinckler has overcome a torn hamstring to make his comeback for Harlequins and is now in contention to supply tighthead cover for prop Dan Cole.

Former Ireland captain Jamie Heaslip, meanwhile, has announced his retirement from the game at the age of 34. The 95-cap international made his debut in 2006 and went on to lead the side 13 times. Heaslip, who spent his club career with Leinster, has been struggling with back problems.

“Jamie was an intelligent and incredibly robust player,” Ireland coach Joe Schmidt said of Heaslip. “The string of trophies he contributed to is lengthy, including three European Cups, three Six Nations, including the 2009 Grand Slam and a couple of PRO12 trophies thrown in for good measure.”

And Wales are to launch their summer tour by facing South Africa at the RFK Stadium in Washington on June 2. It is the first contest between top-tier national teams to be held in the American capital and will serve as the prelude to their two-Test visit to Argentina.