Five keys for Manny Pacquiao

— -- In a fight that should have a lot to say about his immediate future in the sport, Manny Pacquiao will look to regain his welterweight title and prove the validity of his career in Saturday's rematch against Timothy Bradley Jr. at the MGM Grand Garden Arena in Las Vegas.

Pacquiao  (55-5-2, 38 KOs), 35, will look to avenge a controversial split-decision loss to Bradley (31-0, 12 KOs) from their first meeting in June 2012. The Filipino icon ended a two-fight losing streak in his last bout when he defeated Brandon Rios by unanimous decision last November. 

To win the rematch against Bradley, Pacquiao should consider the following keys.

The final picture

Concentration and energy

Speed and effectiveness

Be careful!

In Roach he trusts