Manny Pacquiao, one of boxing's all-time greats, has announced his retirement from boxing. Nick Parkinson recalls some of the key moments in Pacquiao's career.

The most memorable fights of Manny Pacquiao’s career

Manny Pacquiao, one of boxing's all-time greats, has announced his retirement from boxing. Nick Parkinson recalls some of the key moments in Pacquiao's career.