Most football arguments start after the final whistle. That is already too late to be useful.

A match is legible before it begins if you know where to look. Not the badges. Not the table. The team sheet, the calendar, and the shape. That's most of it.

Here's how to read one.

1.Start with the XI, not the badge

The single most informative document in football is the team sheet. It tells you who is available, who is rested, and which version of a manager's plan you are about to watch.

If the first-choice midfield is on the bench, Tuesday's preview is already out of date. If a centre-back who has played every minute is suddenly absent, the number you saw in the week was pricing a different match.

Read the bench too. A strong bench means the manager expects to change the game late. A bench full of full-backs and one striker tells you the plan is ninety minutes of the same idea.

2.Count the days

Football is played with legs, and legs keep a calendar.

A side that played Thursday night in a different country and kicks off at 12:30 on Sunday is not the same side that played on Saturday. Three games in seven days changes the last twenty minutes of the third one. You can predict tired legs without predicting goals: the pressing step gets slower, the second balls get lost, the full-backs arrive late.

Check the previous fixture, the travel, and the next fixture. A team with a cup final on Wednesday has a reason to manage Sunday.

3.Check who the form was against

"Three wins in four" is a story. The opponents are the data.

Three wins against bottom-half sides is not the same as a draw at a title contender. Form is mostly a memory of results, and results are mostly a memory of fixtures. If a team has beaten nobody good and is about to play somebody good, the table is flattering them.

Do the reverse for the struggling side. A team that lost four in a row to the top six might be fine.

4.Look at shapes, not names

Two good teams can be a bad matchup for one of them.

A high line against a team with a fast runner and one good passer is a problem. A pressing side against a goalkeeper who can hit a striker from sixty metres is a problem. A team that defends set pieces badly against a team that scores from them is not a problem, it's a schedule.

Ask: where does each team want the ball, and who is uncomfortable when it goes somewhere else? Then ask which manager is more likely to change first.

5.Watch the first fifteen minutes as a test

The score can be 0-0 and one side can already be in trouble.

Ask who is comfortable on the ball. Who is winning the second balls. Which full-back is being left alone. Which team's press is being played through with one pass. That first quarter of an hour is usually the most honest part of the match, because nobody is protecting a lead yet.

6.Read the late news

Sunday morning team news moves things more than any pundit. A warm-up injury, a keeper change, a pitch inspection, a referee with a short temper and a history with one of these clubs. None of it is decisive. All of it is information.

The hour before kickoff is where a reader becomes a watcher.

The scoreline comes last

After the match, everyone will have an explanation. The job is to have one before it starts, written down, so you can find out whether you actually saw it coming.

Watch the team sheet. Count the days. Find the mismatch. The rest is ninety minutes of confirmation or correction.