Janssen was withdrawn in the second half of Tottenham's 0-0 draw with Bayer Leverkusen, but he seemed to make an impact on the game.
Tottenham's Vincent Janssen reacts after hitting the crossbar
It was certainly two contrasting halves in terms of who had the better of the game at the BayArena last night, as Tottenham came away from Leverkusen with a 0-0 draw in their Champions League group match.
On the fact of it, it's a decent result for Spurs with all to play for in their three remaining group games. On their first half showing they probably feel they should have been ahead. Dele Alli had a couple of chances, Vincent Janssen had a goal chalked off for offside and saw a header hit the bar. In the second half they could have easily lost the game and had goalkeeper Hugo Lloris to thank after a string of fine saves.
Tottenham's Vincent Janssen reacts
The result leaves Spurs second in Group E after three games on four points - one point behind leaders Monaco with all sides very much in with a chance of qualification for the knock-out stages.
There was a lot of reaction to plenty of the performances, but in particular to Janssen's display. He may have only found the net once during his 12 appearances from the penalty spot, but his contribution didn't go unnoticed by a lot of fans, especially after he was withdrawn in the second half.
Tottenham's Erik Lamela and Vincent Janssen react after missed chances
Many thought he was an effective hold-up man, and have suggested that comparisons with Roberto Soldado - who infamously struggled in front of goal during his time at the club - were premature to say the least.
Here is a flavour of what was said:
Some of Janssen's touches have been sublime tonight. Not the 'short on confidence' player that you might have imagined after Saturday.— Chris Miller (@WindyCOYS) October 18, 2016
Without Janssen up top we have nobody to hold the ball up, gonna just keep coming back at us— Jamie West (@yiddowesty) October 18, 2016
Taking Janssen off has lost us a focal point up front.— Paul (@eralcluap) October 18, 2016
we have had no one to aim for to hold ball up and take pressure of us since taking janssen off ... #COYS— Tom clark (@tclark92) October 18, 2016
You know what, Janssen offered more tonight than Soldado offered in two years. He will come good. 110%. Ridiculous to get on his back now.— Spurs In The Blood (@SpursInTheBlood) October 18, 2016