Manila - Manny Pacquiao said on Monday he had not yet chosen a trainer for his July world title fight with Lucas Matthysse, dismissing reports he has cut ties with long-standing mentor Freddie Roach. 

The veteran US ring guru Roach said last week that his 15-year association with Pacquiao, who has won world titles in an unprecedented eight weight divisions, had been terminated ahead of the Matthysse bout in Malaysia. 

"I would be lying if I didn't say I wasn't hurt that he didn't contact me personally about his decision, but the great times we enjoyed together far outweigh that," Roach said in a brief statement on Friday. 

But Pacquiao went on social media Monday to say that he would make a decision later this week on his corner team for the Kuala Lumpur fight with the Argentine World Boxing Association welterweight champion. 

"Contrary to statements which I personally did not make that are circulating in the media, I have not made my final decision who will be my head trainer for my July 14 (US time zone) fight with Matthysse," he said. 

Pacquiao - who has a record of 59 wins with 38 KOs, seven losses and two draws - told millions of followers on his official Facebook, Instagram and Twitter accounts that his adviser Mike Koncz "has been in contact with Freddie (Roach)'s people to keep them informed. 

"I will make a final decision within the week. When that decision is made, Freddie will be the first one to be informed and then I will advise the media," the 39-year-old added.

Roach was ever-present in Pacquiao's corner during his rise to the pinnacle of his sport, helping mould the fighter into one of the best boxers in history. 

Pacquiao has not fought since being defeated on points by Australia's Jeff Horn in Brisbane last July, a loss that cost the Filipino star his World Boxing Organisation welterweight crown. 

Matthysse, who has 39 wins including 36 KOs against four defeats, won the vacant WBA belt after beating Thailand's Teerachai Sithmorseng in January.