Tactics
Spurs rest defence: what the October data actually shows
Three things changed at Tottenham between the start of September and the middle of October. The first was the head coach, which I will not bore you with again. The second was the shape of the rest defence, the line of players who sit behind the ball when Spurs commit numbers forward. The third was the willingness of the full-backs to invert rather than overlap, which is the change that has made the other two changes possible. This piece is about the second of those, and the data October gave us.
What I am actually measuring
When I talk about rest defence on this site I mean the unit of players who sit behind the ball when Spurs are in possession, usually four plus the goalkeeper, sometimes five plus the goalkeeper, never six. I am interested in three numbers. The first is the distance from the deepest midfielder to the back four when the ball crosses the halfway line. The second is the number of players in that rest block when a turnover happens within forty metres of the opposition goal. The third is the time, in seconds, between the turnover and the first opposition runner entering the box. None of these are proprietary, all of them are roughly estimable from the broadcast feed, and I want to flag that caveat before anyone treats the figures below as gospel.
With that out of the way, here is what the October run actually showed. The numbers are mine, gathered across the matches against Brentford, Brighton, Aston Villa and the home tie in the Europa League group stage, and they are consistent enough that I am willing to put them in print.
The shape, and why the full-backs stopped overlapping
Under the previous staff, the rest block sat between thirty-eight and forty-two metres from goal when Spurs crossed the halfway line. That is too deep to compress a counter, and it is the reason that a Brighton side with competent runners in the channels was able to spring three transitional attacks from a single ten-minute spell at the Amex in late September. The current staff have asked the rest block to sit between thirty and thirty-four metres, which is roughly the same line UEFA's technical report on the 2024-25 Champions League identified as the modal distance for the eight sides that progressed furthest in the competition. The trade-off is that the centre-backs now have more of the pitch to cover in behind, which is where the inverted full-backs come in.
Porro, in particular, has stopped reaching the touchline on the right. He now tucks into the right half-space when Spurs build through the middle, which keeps the rest block at four plus the goalkeeper rather than dropping to three plus the goalkeeper when he overlaps. The effect is visible in the broadcast angles: on a normal build-up in October, the back four stays roughly horizontal, the holding midfielder sits between the centre-backs, and the rest block reads as a 4-1 rather than a 3-2. Against Villa, that shape held for sixty-eight minutes before a red card forced a reorganisation, and the data is cleaner for it.
The Brighton match, and what it cost
Brighton at the Amex was the one match in October where the rest block was wrong. The deepest midfielder sat at forty-four metres when the ball was turned over, the back four was caught at forty-seven, and the gap between the two lines was three metres wider than the October average. The first Brighton goal came from exactly that gap, with a runner arriving between the lines and a lay-off to a player who had timed his run to the near post. BBC Sport's live page credited the goal to a through ball and a near-post finish, which is true but not the whole truth. The whole truth is that the rest block was nine metres too deep and the runner had nine metres of unopposed grass to cover.
I want to be careful with this, because the manager in place at the time was the previous one and I do not want to scoreboard a sacking. What I will say is that the shape in that match was not the shape Spurs played in any of the other four October matches, and the staff have been clear in the post-match press that the Brighton exposure was the trigger for the tightening I am describing here.
The Villa match, and what the red card did to the data
Villa at home was the match that gave me the cleanest dataset. Spurs had sixty-three per cent of the ball, the rest block sat at thirty-two metres, and there were zero counter-attacks that started from a turnover in the opposition half until the seventieth minute. The red card changed everything, and I think it is worth setting out what the data showed after it. With ten men, the rest block dropped to thirty-eight metres, Porro stopped inverting and went to a conventional full-back position, and Villa scored twice from transitional attacks in the last twenty minutes. The second goal, a long ball and a near-post header, came off exactly the lane that Brighton had exploited three weeks earlier.
This is the part that worries me. The rest block in normal circumstances is fine, possibly even good, but the second-sprint lane to the near post is a recurring problem. I have written before on this site that rest defence is the players who defend while their team attacks, and the Spurs version of that in October is a block that sits in the right shape but is vulnerable to exactly the kind of run that a coordinated front three will make on the blind side of the holding midfielder.
What the next four matches actually test
The next run is harder. Liverpool away is the match I am watching for, because Liverpool are the team in the league most likely to sprint the near-post lane with three runners, and because the Anfield crowd will compress Spurs into the shape they do not want to be in. Manchester City at home is the match that will test whether the rest block can hold its line against a team that will circulate the ball for ninety seconds and then spring a vertical pass into the channel. The two Europa League matches against teams from the lower half of the seeding pot will, in theory, be the easier tests, and I will be interested to see whether the staff use them to experiment with a higher rest block or stick with the October average.
My expectation, for what it is worth, is that the line stays at thirty-two metres against Liverpool and drops to thirty against City. I expect Porro to invert against Liverpool and to overlap against City. I expect the second-sprint lane to the near post to be tested at least four times across the two matches, and I expect it to be beaten at least once. The data from October is encouraging but it is not yet conclusive, and the only way it becomes conclusive is if the team survive the next ten days without conceding the kind of goal that Brighton scored at the Amex.
A note on the academic bit
For the coaches reading this rather than the fans, the relevant literature is the body of work on transitional pressing and counter-pressing that came out of the German sports universities in the early 2020s and has been refined in the FIFA Technical Study Group reports since. The finding that has the most bearing on the Spurs data is the one that says a rest block should sit no deeper than the second opposition line and no shallower than the edge of the centre circle, and that the back four should compress by two metres for every five metres that the opposition block pushes up. FIFA's technical report on the 2022 World Cup is the most accessible summary of the principle, and the Spurs data from October is roughly consistent with the values in that report. The Liverpool match will tell us whether the principle holds against a team that has spent two years specifically training to attack it.