CASA GRANDE, Ariz. ā āWhy are the players wearing bras during training?ā
Throughout preseason, this is a question that pops up daily on virtually every form of social media. And itās a fair question; the devices strapped around the playersā upper bodies are impossible to miss, and they do look a bit odd at first, particularly when theyāre worn over their training tops.
The answer is that the devices arenāt bras, but instead highly sophisticated GPS tracking devices and heart monitors, and theyāre a critical part of how a coaching staff develops a training session.
Each device has a unique tracking number attached to a specific player, and throughout a training session, critical information is gathered and logged in a central database. Data points like heartrate, distance covered and top speed are recorded for every player, every day.
And every day, New England Revolution head coach Jay Heaps and the rest of his technical staff analyze the data, assess the overall workload of the squad, and tailor the next dayās session accordingly.
āItās really important for me to know how hard theyāre working, what kind of runs theyāre making in training, how much distance theyāre covering in training,ā Heaps said. āAt the end of that, all that information comes in and we can see how hard the training session was.ā
If the players were pushed to the maximum one day, for example, they might pull back the next day to avoid overexertion. Conversely, if a session didnāt work the players hard enough, a more intense workload might be incorporated moving forward.
āThe truth is, itās very important,ā Heaps said. āEvery training session is logged, so we know what weāre expecting from the day and then we get the data. It helps us prepare for the next day and how much we need to do, and what else we can do.ā
While the information gathered is helpful from the standpoint of an overall team workload, itās perhaps more important on an individual basis. Each playerās data is monitored day-to-day, and if the staff notices anomalies in the numbers ā say, for instance, that a player has to work harder than normal to get through a standard training session ā it may lead them to dig deeper into the underlying reasons.
āInjury prevention has a lot to do with that,ā Heaps said. āIf someoneās numbers donāt look right or look like a little bit of an outlier from past data, then we might look and ask: is he sick? Does he have an injury coming? Is he holding something back? Is he having sleep issues?
āItās a lot deeper than just tracking where they are on the field and how many miles theyāve run. Itās a matter of pulling it all together and using the data to get a complete picture of each player.ā
While the devices might be most noticeable during preseason when pictures from camp are prominent, players actually wear the monitors in every training session throughout the season, and some players even wear them during regular-season games, but thatās a matter of personal preference.
In short, youāll continue to see the devices strapped to the players in pictures throughout the season, and now youāll know why.



