Floyd Mayweather Jr is considering signing a new television contract with Showtime that would see him surpass 49 career fights.
The five-weight world champion revealed prior to his September victory over Marcos Maidana - number 47 in an illustrious career – that he plans to hang up his gloves in 2015.
Mayweather, 37, has two more fights remaining on his current contract reportedly worth $200m (£125m), which will take place in May and September next year.
But he has now hinted he may put his plans to build his Mayweather Promotions brand on hold to extend his career in the ring that could feasibly see him surpass Rocky Marciano's long-standing record of 49 consecutive professional wins.
When asked by Ben Thompson of Fight Hype what his plans in the near future are, Mayweather said: "Even though I only have two fights left, you know, some days I think about signing a new contract and extending.
"I'm thinking about it. I'm not 100% sure, but I'm thinking about it."
Mayweather, who also revealed his promotion company is looking to hold a show in London in December, had previously been adamant his last fight would take place next September.
The veteran has no shortage of potential super-fights waiting for him, with Amir Khan and Manny Pacquiao among those vying to attempt to dethrone the welterweight king.
Khan, 27, remains hopeful of securing a showdown with the unbeaten American, an idea Mayweather has been receptive to.
And should reigning WBA and WBC champion Mayweather decide to prolong his career, Khan's chances of securing what would be the biggest payday of his career would receive a huge boost.
A long-awaited meeting with Pacquiao would also appear the more likely. Mayweather has persistently evaded talk of a fight that was initially shelved in 2010 but his father and trainer Floyd Mayweather Sr recently claimed the fight would "definitely take place".
"Trust me. That fight's definitely gonna happen. It's a fight for the world, man, right there. It's the biggest fight that has ever been in life, so like I said man, that fight's gonna happen," Mayweather Sr said, also speaking to Fight Hype.
"I'm going to tell you right now, he never told me the fight's gonna happen, but I'm going to tell you, the fight's gonna happen. You mark my words. Pacquiao is tailor-made for Floyd."