Manny Pacquiao: “Spence is probably the most difficult opponent in my career”

Manny Pacquiao: “Spence is probably the most difficult opponent in my career”

Manny Pacquiao moved his training camp to Los Angeles as he steps up preparations for his August 21 showdown with IBF/WBC welterweight titleholder Errol Spence Jr. Pacquiao (62-7-2, 39 knockouts) arrived Sunday in Los Angeles from the Philippines and went to work on Monday morning, running five miles in the morning and doing 1,000 sit-ups…