Nevin was impressed the performance of the former West Ham United and Tottenham Hotspur star in the first half of the Premier League game against Newcastle United at St. James’ Park.
The former Scotland international claimed that Defoe scared the daylights out of Newcastle defender Chancel Mbemba.
While discussing the 33-year-old England international’s goal on the stroke of half time, Nevin said on BBC 5 live Sport (14:28) on Sunday afternoon: "That wasn't a tap-in by Jermain Defoe. He is 15 yards out and passes into the net as if nobody was there.
"He is a natural goalscorer and has been dangerous all afternoon. He is really lively and scaring the daylights out of Chancel Mbemba.”
Defoe is a proven Premier League striker, and he will be hugely important to Sunderland’s chances of survival in the English top flight.
The Englishman has scored 12 goals and provided one assist in 26 league appearances so far this season.
Sunderland are third from bottom in the Premier League table at the moment with 26 points from 30 matches.
Sam Allardyce’s side will return to action at the start of next month when they take on West Bromwich Albion at the Stadium of Light in the Premier League.