A team announcement and a price movement can occur close together. That creates a useful research question, but it does not answer it: did the move begin before or after the information was published? A headline and the latest quote cannot establish the sequence on their own.
Record the exact claim
“Not in the squad”, “not in the starting eleven” and “unavailable to play” are different statements. A named substitute is not a starter, and absence from a team list does not by itself establish an injury. IFAB's player rules provide the underlying distinction between players and substitutes; an actual fixture's team information needs the relevant official announcement.
Keep the direct source address, its displayed publication time and the precise claim you are using. If a secondary report is involved, identify the original statement it relies on. Record later corrections separately. Do not turn a journalist's expectation into a confirmed line-up by shortening the wording.
Construct a timeline with visible gaps
In a fictional example, the official team announcement appears at 18:00. You have quotes from 17:30, 17:55, 18:05 and 18:30 for the same market. If the movement is already visible at 17:55, the observations do not support saying that the 18:00 announcement initiated it.
Information may have circulated earlier, or another development may have affected prices. If only the 17:30 and 18:30 quotes are available, the exact start of the move remains unknown. Drawing a line between those points does not create evidence of the intervening prices. A chart should distinguish observed points from any visual interpolation.
Describe association before claiming a cause
“The home price changed during the hour around the announcement” describes the available observation. “The player's absence caused the change” makes a stronger claim. Supporting the latter would require a research design that addresses competing explanations rather than a comparison of two timestamps.
Other team news, market suspensions or simultaneous repricing can complicate the picture. When comparing bookmakers, apply the same time-matching rule to each. Include sources with no observed movement, and identify sources with missing observations. Selecting only the largest move after seeing the results gives an incomplete account.
Check the story again before publication
Recheck the official announcement and scheduled kick-off immediately before releasing a time-sensitive article. Attribute unconfirmed information as such, and make subsequent corrections visible. The headline should stay within the claim supported by the source.
This article is a method for examining news, not a report about a current fixture. It deliberately uses a fictional timeline. Even a well-documented price response would not establish how the match will finish: it explains a market observation within a particular information window.
Sources and method
Calculations and scenarios are original teaching examples, not observed match data, product performance or predictions. Sources support the stated concepts and methods. This article was prepared with AI assistance; sources and calculations were checked.
- IFAB: Law 3, the players — accessed 14 September 2026