Liam Stacey, 21, provoked revulsion with comments made while the Bolton Wanderers star still lay on the pitch.
Police were inundated with complaints as members of the public reported the student’s comments.
Stacey, a Swansea University biology undergraduate, was quickly tracked down and arrested.
Last week he admitted inciting racial hatred when he appeared briefly at Swansea Magistrates’ Court and today he was jailed for 56 days at the same court.
The first of Stacey’s messages began with “LOL [laugh out loud]. **** Muamba. He’s dead!!!”
A number of people took him to task for his views and he responded with a further string of offensive and racist comments aimed at other Twitter users.
Stacey was close to tears during his appearance before magistrates last week.
In jailing Stacey today, the judge said he took into account his early plea and the fact that he had been “in drink” at the time.
Stacey’s sentence prompted a heated debate on Twitter.
Among those applauding the judge’s decision was Lord Sugar, who tweeted: “good job, be warned idiots”.
Liam Stacey jailed for 56 days for comments made on Twitter about Bolton midfielder Fabrice Muamba.BLOODY GOOD JOB. Be warned idiots !
FROM @LORD_SUGAR ON TWITTER: (about 8 hours ago)
Others claimed the decision was too harsh given the student’s previously clean criminal record.
But Jim Brisbane, Chief Crown Prosecutor for CPS Cymru-Wales, said racist language was inappropriate in any setting and through any media.
We hope this case will serve as a warning to anyone who may think that comments made online are somehow beyond the law.
– JIM BRISBANE, CHIEF CROWN PROSECUTOR FOR CPS CYMRU-WALES
District Judge John Charles told Stacey that his actions would do untold harm to his career.
He said that “It was racist abuse via a social networking site instigated as a result of a vile and abhorrent comment about a young footballer who was fighting for his life.”
Other undergraduates at Swansea campaigned for him to be dismissed from the university completely.
The student remains suspended from the university pending the conclusion of our disciplinary proceedings.
– SWANSEA UNIVERSITY SPOKESMAN
He is still the subject of an internal investigation.
What was racist about what he typed on twitter?, ( lol fuck M HE IS DEAD ) nothing racist there,now they want to destroy him,what people need to remember we did have freedom of speech in this country,now if your white you will be targeted,people who assault someone on the streets walk free,ho i forgot that person was white who was assalted:Muslim women not used to drinking walk free after attack on woman
A gang of Somalian women who repeatedly kicked a young woman in the head walked free from court after a judge heard they were “not used to being drunk” because they were Muslim.
The four women – three sisters and their cousin – were told the charge of actual bodily harm, which carries a maximum sentence of five years, against 22-year-old care worker Rhea Page would normally land them in custody.
However, the judge handed the women suspended sentences after hearing that they were not used to alcohol because their religion does not allow it.
Miss Page said Ambaro Maxamed, 24, Ayan Maxamed, 28, and Hibo Maxamed, 24, and their 28-year-old cousin Ifrah Nur screamed “Kill the white slag” while kicking her in the head as she lay motionless on the ground.
The support worker from Leicester was left “black and blue” with bruises and needed hospital treatment following the attack which came as she walked to a taxi rank with her boyfriend.
Miss Page was left so traumatised by the attack that she lost her job due to repeated absences with stress and flashbacks.