User blog comment:KidVegeta/Canonicity/@comment-3097771-20101130085204/@comment-3097771-20101130090516

Nope, it was stated in canon media (raging blast 1) that Future Trunks got his sword from Tapion. Remember FT's timeline is different than the normal timelline, and Tapion could have arrived much earlier then. -KidVegeta