Updated

Texas Rangers third base coach Gary Pettis says it's important for Major League Baseball — and all Americans — to take a moment to remember Sept. 11.

Pettis has vivid memories of the day 12 years ago when two hijacked jets were flown into the World Trade Center towers. Pettis was then a coach for the Chicago White Sox, who had arrived in town only a few hours earlier for a scheduled game against the New York Yankees that night.

MLB players, coaches and umpires are wearing American flag patches embroidered on the side of their caps. Special lineup cards will be used and patriotic on-field tributes are planned for the 15 games Wednesday, involving all 30 teams.