Tottenham needed two goals in the final 10 minutes to beat Lokomotiv Plovdiv 2-1 in the second qualifying round.
Spurs named a strong team in Bulgaria but were facing an embarrassing loss when Georgi Mindev put the hosts ahead in the 71st minute.
But Jose Mourinho's men saved face with an impressive comeback as a Harry Kane penalty, after an incident which saw two Plovdiv players sent off, and Tanguy Ndombele's 85th-minute winner sent them through.
- GOAL! Ndombele gives Spurs the lead
- GOAL! Harry Kane levels from the spot
- GOAL! Plovdiv take shock lead
- Bale loan deal to cost £15m all in
- Reguilon and Bale have medicals
- How Spurs could line-up with new signings
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