What If Pacquiao Lost Versus Mosley, Will Still Be Pacquiao vs. Mayweather Later?

In a news today, I've heard that despite that there's no result yet on the Pacquiao vs. Mosley match scheduled on May 7, Top Rank, Pacquiao's camp and Mayweather's camp are discussing already the possible Pacquiao vs. Mayweather in November 2011. It seems that they are not worrying with the possibilities that Shane Mosley might overwhelm Manny with their fight and upset the Filipino boxer on their fight. It also seems that they are already assuming that Pacquiao will be the victor on their match which I see as unfair for the American boxer. Of course, I am excited with the Pacquiao-Mayweather dream match but I think Mosley deserves to prove himself and appreciate his effort to make himself much known to the boxing world. I think at his age, he wants something big before he retires which makes him very dangerous.

The question now is what if Shane Mosley knock out him and win this match, will still be a Pacquiao vs. Mayweather? Even him commented that he will surely disappoint Pacman's fan for he is also aiming for a Mayweather vs. Mosley rematch. Despite his age, he can still deliver heavy blows and fast move but of course based on his previous fights, he is kinda slow on the later round which might cause him to loose - which was also predicted by known boxing analysts.

What do you think? Can he really perform impressively on the Pacquiao vs. Mosley fight? Let just see on May and let their gloves and ring decide.