Over the weekend JT O'Sullivan of the QB School played a little April Fool's joke on us. In the process he completely destroyed the excuses Shanny gave for why 49ers QBs constantly get injured. Let's talk about it.Follow me on Twitter@PeterLucas8Instagramniner_fanatic_podcastTik Tok@NinerFanaticPodcast#49ers #NFL #QBSchool