Australian puncher Lucas Browne picked himself up off the canvas to score a surprising 10th-round stoppage over former WBA heavyweight titleholder Ruslan Chagaev on Saturday in Grozny, Russia.

Chagaev, rated No. 8 by the RING, floored his man with a straight left hand in the sixth but was unable to close the show. Browne, behind on the cards and in need of something spectacular, turned the tables in Round 10 with a powerful right hook counter and his follow up assault forced referee Stanley Christodoulou to intervene.

Chagaev (34-3-1, 21 knockouts) seemed to lack proper conditioning. He weighed in at an acceptable 248.5 pounds but faded in the late rounds.

Browne (24-0, 21 KOs) brought an impressive record to the table but the vast majority of his opposition had been undistinguished. Thus, it was no surprise that his more-experienced opponent found holes in his game. Browne won the fight on pure guts and determination.

The victory was the biggest in the 36-year-old’s career, which began in 2009. Browne won what the WBA calls it’s “regular” title, which the RING doesn’t recognize. Tyson Fury is the WBA champion.

Tom Gray is a member of the British Boxing Writers’ Association and has contributed to various publications. Follow him on Twitter: @Tom_Gray_Boxing