Manny Pacquiao, Shane Mosley All Smiles at Final Prefight News Conference (Video)

Manny Pacquiao and Shane Mosley were all smiles on Thursday as the two fighters took in their last news conference of the week before their scheduled bout on Saturday, May 7.

Come Saturday, however, only one fighter will be smiling when it's all said and done at the MGM in Las Vegas.

Check out the scene at the news conference in the video below.