Maccarinelli has lost four of his last eight bouts since losing to David Haye
Enzo Maccarinelli will speak to wife Elouise as the former world champion decides if he is to quit boxing after suffering a sickening knockout.
Unbeaten Alexander Frenkel dethroned the European cruiserweight champion in emphatic fashion on Saturday.
Maccarinelli required treatment from ringside medics and needed oxygen as the 30-year-old was on the canvas for five minutes before leaving the ring.
"Maybe I'll have an other crack," he said. "But I'll to speak to my wife."
The Welshman has lost four of his last eight bouts - suffering five defeats in his 37-fight career - and has ruled out retirement twice previously following heavy knock-downs.
The demise of 'Big Macc' began in March 2008 when he lost his WBC and WBO titles in a unification showdown with David Haye.
The Hayemaker brutally beat Maccarinelli inside two rounds before in the highly-anticipated 'Battle of Britain' clash at London's O2 Arena.
Enzo Maccarinelli fought David Haye to be unified cruiserweight king in 2008
The Swansea showman returned but was again fighting for his professional life after his shock third round knockout by Russian Denis Lebedev in July 2009 in what he had described as his "last-chance saloon".
Maccarinelli, though, fought on and shocked the boxing world by claiming the European crown from Alexander Kotlobay in a first-round knock-down in Kotlobay's home-town of St Petersburg in April.
But the Welshman's latest career blow from Ukrainian Frenkel has even led to his promoter Frank Warren hinting that Maccarinelli's career his over.
"It was a shame for Enzo to go out like that after all he's done," said Warren.
Top promoter Warren has offered Maccarinelli the opportunity to join him in the promotion ranks and help co-promote fights in his native Wales.
But the fighter, one of 10 world champions to come from Wales, is currently mulling over whether he has a future in competing rather than promoting.
Maccarinelli had picked himself up from a Frenkel knock-down in the seventh before being sent crashing back to the canvas three punches later to end the fight.
"They say boxing is a man's game and unfortunately that's the sport I'm in," said Maccarinelli.
"I'm disappointed. I'll also have a chat with Frank and see where we go from there.
"But I've had a good career and I'm proud of it."