The Mali international joined Antonio Conte’s team earlier in the window after impressing with Graham Potter’s Brighton for the last two seasons.
Bissouma was linked to a number of clubs including Manchester United, Liverpool, Newcastle and Arsenal but opted for Spurs, who will also compete in the Champions League next season.
“That’s a bargain,” Murphy said on talkSPORT. “I just think with his potential and his athleticism. I think every part of his game is good.
“I think possibly his lack of goals maybe [why others didn’t bid for him]. Also, the other midfields. If we are talking about Liverpool, Chelsea and Man City, they aren’t struggling.”
Murphy also felt Bissouma made the right call in selecting Antonio Conte’s Spurs ahead of Erik ten Hag’s Man United.
“You would rather go Tottenham, wouldn’t you?,” joked the former Liverpool and Spurs midfielder.
Check out the latest Premier League transfer speculation below...
5. Leeds rekindle Brereton Diaz interest
Leeds United have returned to the prospect of signing Blackburn Rovers forward Ben Brereton Diaz amid growing interest from West Ham. (AS) | Getty Images
6. Colwill considers exit
Levi Colwill is considering his future at Chelsea amid concerns over game time. Arsenal and Crystal Palace have been linked. (90min) | Getty Images
7. Kalajdzic on Albion radar
Brighton have joined the race to sign VfB Stuttgart talent Sasa Kalajdzic, who is also on the radar for both Manchester United and Tottenham. The striker could cost around £21m. (Sky Germany) | Getty Images
8. Toney in demand
Manchester United are keeping tabs on Brentford striker Ivan Toney, who is also a target for Newcastle United, West Ham, and Leeds United. (Mirror) | Getty Images