England Grand Slam t-shirts go on sale three weeks before the start of the Six Nations
T-shirt manufacturers are so sure England will complete back-to-back Grand Slam wins in the Six Nations this year that they have already produced merchandise to mark the event.
England are on a run of 14 straight victories under Eddie Jones and have already been installed as odds-on favourites to lift the Six Nations trophy this year.
The American website Groupon have looked to cash in early on England's potential success by offering a discounted t-shirt celebrating their Grand Slam victory.
The 'Men's England Slam Champions 2017 Rugby T-Shirt', which is not officially licensed by the RFU, is available for £9.98 - a 4%1 reduction on its original retail price of £16.99.
The words 'Grand Slam 2017' are emblazoned on the front of the shirt along with 'Swing Low Sweet Chariot' draped around an English rose.
If England do manage to lift their win their second Grand Slam in two years, it's likely Eddie Jones' side will pass New Zealand's record for consecutive wins in the process.
England's 37-21 win over Australia in the Autumn saw their winning run extend to 14 matches, four behind New Zealand's 18-match winning streak.
In 2011 England were left red-faced after a Nike advert created to mark their Grand Slam win over Ireland was leaked online.
Nike produced a special video under the title 'Grand Slam Champions 2011' featuring a montage of Toby Flood, Chris Ashton, Ben Foden and other players in expectation of the odds-on favourites completing their first Six Nations clean sweep since 2003.
The video was left unused after Ireland secured a famous 24-8 victory at Landsdowne Road to leave England's Grand Slam celebrations in tatters.
Nike had reportedly printed 5,000 special limited edition T-shirts "inspired by the iconic image of the English rose" which were due to go on sale at the final whistle.
England kick off their Six Nations defence with a home fixture against France at Twickenham on Saturday February 4.
If they win their opening four games of the tournament they will travel to Dublin on St Patrick's weekend looking for back-to-back Grand Slams on March 18 at the Aviva.