Flintoff made a much-publicised switch from cricket to the ring and won his debut fight last month with a four-round points success over American Richard Dawson.
The contest, Dawson’s third as well as Flintoff’s first, attracted plenty of interest but also provoked widespread doubts toward the Englishman’s aptitude to the sport going forward.
It now looks as though the 35-year-old’s decision will be made for him, as a torn shoulder ligament will require surgery.
The one upside from Flintoff’s dabble with pugilism may be that the boxing training has improved his fitness, conditioning and body strength to the point that a return to cricket in some form could be on the cards.
"The injury to his shoulder will be taken into account but at this stage we are ruling nothing in and nothing out," said a spokesman for Flintoff.
"It is a nasty one but he has had a lot nastier during his life.
"We will just wait and see and report back in the New Year and see where we go. There are certainly leads to chase."