The former Tottenham Hotspur defender was impressed with the midfielder.
Tottenham drew 0-0 with the Reds during Jurgen Klopp's first match in charge of the Anfield outfit.
And midfielder Dembele took his chance to impress in the absence of a number of injured and suspended team-mates.
Dembele certainly delivered for Tottenham considering the transfer talk that has followed him around this week.
Indeed, the Belgian has been linked with a January move to Napoli by Tuttosport but he responded strongly at White Hart Lane on Saturday afternoon.
As Opta stats show, Dembele topped several key areas for Tottenham against Liverpool.
The Belgian beat his man five times, won five interceptions and also won six tackles. No Spurs star beat him in either area.
But the issue now facing both Dembele and Mauricio Pochettino is whether the 28-year-old has done enough to force Dele Alli or Eric Dier out of the team.
There are also Ryan Mason and Nabil Bentaleb to consider.
Next up for Tottenham is a Europa League trip to Anderlecht on Thursday night, before they face Bournemouth in the Premier League.