Gone are the days when baseball players arrived for spring training having taken the last three or four months off. Today, the offseason is primarily viewed by players — and teams — as the time to prepare their body for the upcoming season, rather than relax after the 162-game grind they just endured.



And as the role of being a major-league player becomes a 365-day-a-year job, teams’ spring training facilities are following suit. What were once buildings designed to be used for only six to eight weeks early in the year now operate as year-round training and rehabilitation centres for major-league clubs.



Over the last 10 years, 22 of the 30 teams have either undergone major renovations of their spring facilities or rebuilt them entirely, according to Blue Jays president Mark Shapiro.



This coming year, the Blue Jays will become the 23rd.



“Guys are showing up to spring training differently than they did 10-15 years ago,”...