Yesterday's blast came just days after a twin car bomb attack ripped through a crowded market in the city, killing 118 and raising fears of a spread of Boko Haram Islamist violence from the restive northeast.
"So far, we have three dead, three injured," Chris Olakpe, the commissioner of police for Plateau state, of which Jos is the capital, told AFP.
"The target was the (football) viewing centre."
Olakpe said it was too early to say who may have been responsible for the blast, which came with people on edge and nerves frayed about a fresh strike.
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"He died in the wake of the heinous crime. He was consumed by his IED. It exploded before the viewing centre because of pressure from local youths and the alertness of the local people," he added.
Pam Ayuba, spokesman for the Plateau state governor Jonah Jang, said the blast happened at about 9:30 pm (0200 IST, Sunday) on Bauchi Road, a predominantly Muslim area of the city.
Football is Nigeria's national sport and top European teams, particularly from the English Premier League but also Spain's top flight, have a fanatical following.
So-called football "viewing centres" -- often open air, big screen venues -- have been targeted before, elsewhere in Nigeria.
Last month, suspected Boko Haram gunmen stormed a packed venue in Potiskum, northeast Yobe state, and shot dead two people showing the two Champions League quarter-final matches.
Police at the time did not directly blame Boko Haram for the attack but the group has been known for preaching against football as part of its agenda to impose strict Islamic law in northern Nigeria.
In several video clips, Boko Haram leader Abubakar Shekau has described football and music as a Western ploy to distract Muslims from their religion.