Interesting fact.
Pep Guardiola has spoken a lot in the past few days about how his Manchester City side need to be more clinical in front of goal if they are going to win the Champions League, but the statistics don't really back him up.
In each of the three previous seasons under Pep, City’s shot conversion ratio in Europe has been higher than the actual winners, above 20% each time, and always ranked in the top four.
And it seems that having the best shot conversion ratio is far from a guarantee of success anyway. In the eight seasons since City made their debut in this competition in 2011, only two of the teams to top that category have got past the last 16 - Paris St Germain (QF) in 2014 and Liverpool (runners-uo) in 2018.
As I've shown, the average conversion rate is misleading. Ours this season is better than it was in the previous 3 seasons under Pep, but crucially it's masking the fact that in a couple of games it's been really high, but when it's been below the 40% threshold we've dropped points. Conversion rate has to be looked at game by game.
This is particularly important in the CL knock-outs over 2 legged ties:
i.e.
16/17 v Monaco.
1st Leg: City 5-3 Monaco, City SOT conversion rate: 83.33% (5 out of 6), Monaco: 50% (3 out of 6).
2nd Leg: Monaco 3-1 City, City rate: 33.33% (1 out of 3), Monaco: 75% (3 out of 4).
Average over the 2 legs: City: 66.67% (6 out of 9), Monaco: 60% (6 out of 10).
So we come out of it with a higher overall conversion rate, but crucially it's that 33% versus 75% in the 2nd leg that is the larger disparity and knocked us out by an away goal.
17/18 v Liverpool
1st Leg: Liverpool 3-0 City, City rate: 0% (0 out of 0), Liverpool 60% (3 out of 5)
2nd Leg: City 1-2 Liverpool, City rate: 33.33% (1 out of 3), Liverpool 66.67% (2 out of 3).
Average over the 2 legs: City: 33.33% (1 out of 3), Liverpool 62.5% (5 out of 8).
So Liverpool were more clinical in both legs and on aggregate won comfortably. Obviously we had 2 goals wrongly disallowed for offside but as they don't count as shots on target as a result our percentage would shift to 60% (3 out of 5). Now, may seem not to make a difference but that would have meant an away goal and 2-0 up at HT in the return, so 3-3 on aggregate and going through on away goals, so we were screwed there but nonetheless the conversion stats tell the story, when we score and they count we are in the driving seat.
18/19 v Spurs
1st Leg: Spurs 1-0 City, City rate: 0% (0 out of 2), Spurs: 25% (1 out of 4).
2nd Leg: City 4-3 Spurs, City rate: 50% (4 out of 8), Spurs: 42.86% (3 out 7).
Average over the 2 legs: City: 40% (4 out of 10), Spurs: 36.36% (4 out of 11).
So again we edge the average, but firstly we barely scrape the 40% threshold, secondly it shows the importance of the away goal because Spurs had 42.86% at our place vs. our 50% conversion rate, whereas we had 0% thanks to Kun's penalty miss compared to Spurs 25%. Converting that penalty puts us at 50% for both legs and we cruise through, but the disparity between the 2 games put us in a tricky position and in the hands of VAR again.
So what can we see? Well, the importance of looking at each game individually against our ideal threshold and not averages. Secondly, the importance of a consistent average and not wild swings and thirdly, the importance of scoring away goals and the fact that our opponents visiting the Etihad in these crucial knock-out games tend to have higher conversion rates and take away key away goals, whereas we don't do the same. That's what's costing us, yes we need to tighten up but we also need to take our chances more consistently.
We don't create as many chances in these tight games and we need to take them in both legs, because the opposition certainly do so.