Who are the current football world champions?

On February 4, 2018, Super Bowl LII (52) was won by the Philadelphia Eagles 41-33 over the New England Patriots, who had beaten the Eagles in Philadelphia's last Super Bowl appearance in 2004 (SB 39).

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On February 5, 2017, Super Bowl LI (51) was won by the New England Patriots in overtime 34-28 over the Atlanta Falcons, who also lost their only previous Super Bowl appearance in 1999 (SB 33).