After a torrid 2018 that saw him vacate his WBO middleweight title after a failed drugs test, Saunders took a big step towards redemption on Saturday night, becoming a two-weight world champion in front of a home crowd in Stevenage.
The 29-year-old controlled the contest from the off, picking his shots with ease and was seemingly destined for an early stoppage win.
But he was given a brief reminder of what was on the line when Isufi briefly wobbled him a solid right in the sixth round; a moment of carelessness that no doubt prompted trainer Ben Davison to read the riot act.
Saunders took a round to refocus but then picked up from where he left-off, effortlessly tagging his opponent while carefully avoiding everything thrown his way.
In the end, he was a class above his opponent, securing a comfortable majority points decision.
Saunders becomes a two-weight world champion at the first time of asking and has already talked up the compelling possibility of a unification bout with fellow Brit and WBA champion Callum Smith.