The club on Monday announced they were standing by the player, following a conviction for "lewd, libidinous and indecent behaviour".
However, a short statement on the club's official website, this morning read: "Hearts today announce that Craig Thomson is suspended with immediate effect. No further comment will be made by the club."
The 20-year-old full-back earlier this month pleaded guilty, was fined and placed on the sex offenders register in relation to his inappropriate conduct towards two underage girls over the internet.
And on Monday one of the club's sponsors - MacB Water - announced they were withdrawing support as official water sponsor of the Jambos, a deal worth more than £5,000.
A MacB spokeswoman said: "As a company with strong family values, we are left with no choice but to terminate our relationship with the Hearts Football Club.
"Along with countless others, fans and co-sponsors alike, we are extremely disappointed with the club's handling of this situation and as a result can no longer continue our support."
BUT HEARTS WILL KEEP THE PLAYER!
Hearts manager Jim Jefferies: "There will be some games now where this gives us a situation.
"We have to make sure that if Craig ever gets back in the team - and let's not forget there's competition for places - how will he handle what's coming to him?
"We have to be sure as well because at the end of the day that's going to affect the performance of the rest of the players if it becomes a bit of a sideshow which gets out of hand."
NEWCASTLE UTD FIXTURES:-
Saturday 13th August 2011
Newcastle United v Arsenal 15:00
Saturday 20th August 2011
Sunderland v Newcastle United 15:00
Saturday 27th August 2011
Newcastle United v Fulham 15:00
Offer To NU-Mad Fans Continues
Due to the amazing response from NU-Mad readers ... we have decided to continue our offer for you to buy "Magpies In Europe" for the amazing price of £5.99. The offer will end July 1st.
A 'THANK YOU' TO FOOTYMAD READERS ...
'MAGPIES IN EUROPE'
FOR £5.99 (inc post)
2010/11 has been NewcastleUtd-Mad's greatest season for page 'hits', and as a thank you to all readers we are giving you the chance (FOR TWO WEEKS ONLY) to purchase "MAGPIES IN EUROPE" for £5.99 (and that includes the postage).
*Normal price is £9.99
OFFER ENDS JULY 1st 2011
Although "Magpies In Europe" will not be launched OFFICIALLY until next season ... if you want a copy it is available NOW from this website ... and ONLY from this website!
FOREWORD BY FAIRS CUP HERO JOHN McNAMEE
Sports Journalist Richie Everson: "At last a book that the fabulous Newcastle United fans can relate to. It's informative, all the facts and figures are there, plus the 120 match reports from all the fixtures ... but it is the articles by the supporters that amazed me.
"I went to many of those games, and this is the only book I can honestly say 'hits the nail on the head'!
"Yes we know the results and the scorers, but some of the facts in this book had me so wrapped up in it I couldn't put it down.
"Was Benny Arentoft cup-tied when he played in the final? Big Wyn and his battle with John McGrath; McFaul scoring a penalty when the crowd had gone home; the trouble in Palermo; it is all amazing stuff.
"I would honestly give this book 10 out of 10."
MAGPIES IN EUROPE
Please include your address in a letter and send a cheque (or postal order) for £5.99 payable to Mr K Fletcher, to:
'MAGPIES IN EUROPE', K Fletcher, 5 Dunelm, Sacriston, Co Durham DH7 6NU.
Or contact: Kevnumad@fsmail.net