Courtesy of TMZ.com.

WWE “Monday Night Raw” EEK!! A MOUSE … Toe-to-Toe with John Cena

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.