Spurs were in control from start to finish but needed to dig deep for the win, with over a dozen absentees and only one senior player on the bench.

Spurs finished fourth in the 36-team table, giving a welcome boost to Thomas Frank's side after a poor domestic campaign.

Frank told reporters the victory showed his side's "character", adding: "2-0, away from home in the Champions League -- impressive. There's a lot of positives there but we need to build on it."

Asked how far the Europa League holders can go in the Champions League this season, Frank said: "We will dream, we will do everything we can in the round of 16 and we'll take it from there."

Toasting a "fantastic win", Spurs captain Cristian Romero told TNT Sports: "In the Champions League we play with another mentality, every game for us feels like a final.

"When we play with this mentality, it's not easy but we come close to winning every time. We need also to have this mentality in the Premier League."

Having escaped injury in a car accident on the way to the airport on Tuesday, Kolo Muani tapped Spurs in front two minutes after half-time with a calm finish against his former employers.

Solanke doubled the visitors' lead shortly after coming on, putting the London club on track for their fifth win in Europe this season.

"I came on at 1-0 and wanted to kill the game and after that it was quite comfortable -- so obviously I'm delighted," Solanke told TNT.

- Spurs undermanned and under fire -

Hit with 14 absences after a chaotic lead-up to Wednesday's match, under-fire Spurs manager Frank only had 11 experienced outfield players at his disposal in Germany.

Striker Solanke was the unlucky one to start from the bench, with former Frankfurt forward Kolo Muani preferred up front.

Already eliminated before kick-off, Frankfurt were playing for pride alone in just their second Champions League campaign. The hosts came into the game still searching for a coach with manager Dino Toppmoeller fired in mid-January after a poor run of results.

Xavi Simons looked to have given the visitors the perfect opening when he scored inside two minutes, but VAR found Destiny Udogie offside in the build-up.

Spurs laid siege to Frankfurt's goal in the opening half but failed to break through despite Simons looking dangerous and Pape Matar Sarr hitting the post.

No team had conceded more goals than Frankfurt in the competition so far this season and a simple lapse of concentration from the hosts let Tottenham take the lead moments after half-time.

Kolo Muani, who went on strike to force his way out of Frankfurt to move back to Paris Saint-Germain in 2023, was booed whenever he came close to the ball but was the one to make the breakthrough.

Simons swung in a free-kick which Romero met easily, laying it off for Kolo Muani to tap home.

Solanke, whose penalty at this venue last season put Spurs on track for Europa League glory, came off the bench with 73 minutes gone and doubled the lead shortly after.

Frankfurt's Mohamed Dahoud passed behind him without noticing the on-rushing Solanke, who took a touch before slotting home.