'Boston Strong' in Chicago

White Sox first baseman Paul Konerko wears a "Boston Strong" T-shirt along with his teammates before a game against the Red Sox on Tuesday at U.S. Cellular Field. (Chris Sweda, Chicago Tribune / April 15, 2014)

The White Sox marked the first anniversary of the Boston Marathon bombings during warm-ups tonight, as players and coaches wore T-shirts emblazoned with the “Boston Strong”  logo that became the city’s unofficial motto after the fatal attacks.

The ballclub also held a moment of silence before the game in honor of the three people killed and 264 others injured when two pressure-cooker bombs exploded near the marathon’s finish line last year.

The gray T-shirts – which the team wore during the moment of silence –  had a much smaller White Sox logo and the word “Together” printed underneath the Boston emblem.

The Red Sox, on Twitter, thanked the South Side team for its tribute, as hundreds of Boston fans echoed their gratitude. Major League Baseball also posted pictures on social media of Paul Konerko and Jose Abreu wearing the shirts.

Earlier in the day, the Red Sox joined Boston’s other professional sports teams in tweeting a message to mark the anniversary.

At exactly 9 a.m., the Red Sox, Patriots, Bruins, Celtics and Revolution all sent out the same tweet containing the same photo of marathon runners adorned with a #BostonStrong hashtag, a blue-and-yellow Boston Strong ribbon and the logos for all the teams.

"We're all on the same team. #BostonStrong,” the tweet said.

sstclair@tribune.com | Twitter: @StacyStClair