Piraeus - Tottenham failed to get off to a winning start in the Champions League as last season's finalists let a two-goal lead slip to draw 2-2 with Olympiakos in Greece on Wednesday.
A point away in front of a passionate crowd in Piraeus is not a disastrous start for Mauricio Pochettino's men, who took just one point from their opening three group games last season before an improbable run to the final.
However, there will be concern for Pochettino that Spurs have won just two of their opening six games this season and face the might of Bayern Munich next in the Champions League.
Four minutes later the points seemed destined to head back to London when Lucas collected Ben Davies's pass and fired home from outside the box to double Tottenham's advantage.
Tottenham thought they had restored their two-goal lead when Dele Alli found the net early in the second-half, but the England midfielder was rightly flagged offside.
Jose Sa made a great save to deny Alli his first goal since January and then also stood up to Erik Lamela's near post blast with Kane left begging for a pass that could have left him with a tap in.