Dummett threatened after Suarez injury scare
Liverpool's Uruguayan striker Luis Suarez controls the ball during the English Premier League football match between Manchester United and Liverpool at Old Trafford in Manchester, Northwest England, on March 16, 2014 - by Paul Ellis
Suarez, 27, has undergone minor knee surgery after a knock playing for Liverpool against Newcastle on the final day of the Premier League season on May 11.
Uruguay officials remain confident he will be fit for the World Cup with Uruguay's first match against Costa Rica on June 15 followed by England in Sao Paolo on June 19.
But several Uruguay supporters vented their fury on Twitter, including menacing warnings for 22-year-old full-back Dummett, who collided with Suarez towards the end of Liverpool's victory at Anfield.
Dummett was sent off after catching Suarez in what looked an accidental collision, and his red card was later rescinded.
One Twitter user, Federico Gonzalez, posting on @FicoGonzalez13, wrote: "Hi @PaulDummett, from Uruguay we hope someday u come here to have a nice time w/ friends. We have things for you, like a bullet in the head."
There had been no report of an injury for Suarez as a result of the challenge, but he complained of pains at the start of Uruguay's training camp and was sent for an MRI scan.
"Yesterday, Wednesday 21st of May, Luis Suarez suffered an intense pain in his left knee after an undergoing a normal warm-up," said a statement from the Uruguay Football Association (AUF).
"He had an MRI scan which confirmed a partial lesion of the external meniscus of his left knee.
"On Thursday morning, he underwent an arthroscopic partial resection of his meniscus in the Medica Uruguaya hospital (Montevideo).
"There was no evidence of any further damage to the knee.
"His participation in the World Cup in Brazil has not been ruled out."
Uruguay FA president Wilmar Valdez suggested if Suarez's recovery went to plan he could return to training in just over a fortnight.