There's a new challenger for the WWE belt ... a ferocious .... teensy-weensy mouse!
It all went down last night at the Valley View Casino Center in San Diego on Monday Night RAW -- John Cena stormed the ring to attack WWE champion Alberto Del Rio ... and the two were photo-bombed by a tiny mouse.
Thankfully, no injuries were reported.
WWE "Monday Night Raw"
EEK!! A MOUSE ...
Toe-to-Toe with John Cena
8/16/2011 7:00 AM PDT BY TMZ STAFF
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