Jake Paul has admitted his mother is ‘scared’ and can’t even watch footage of Mike Tyson training ahead of their blockbuster boxing fight on Friday night. The two Americans will lock horns at the AT&T Stadium in Texas, months after they’d originally intended to do battle. Paul and Tyson had been due to face off on July 20. However, their showdown was delayed after the latter suffered an ulcer flare up. Fast-forward to now and, barring any late twists, the seismic clash is set to go ahead. Paul, speaking in a face-to-face sitdown with Tyson for MVP, has admitted that fear is starting to creep i…