ORLANDO, Fla.

Marlon Byrd moved across Pennsylvania to Philadelphia.

Tampa Bay is considering daring moves, and so is Texas.

And the New York Yankees, as always, plan to be in the mix for some big-time deals.

As the offseason market for trades and free-agent signings gets underway, Major League Baseball is considering some pretty radical changes for the entire sport next season.

Expanded instant replay for umpires’ calls is virtually certain to be in place by opening day, and there’s a chance a rule could be adopted to prevent runners from bowling over catchers at the plate.

“There’s a pretty good possibility that something eventually will happen,” MLB executive vice president Joe Torre said Tuesday on the second day of the annual general managers’ meetings. “Whether it’s going to be soon enough to have it done this coming year, that remains to be seen. But I don’t think it’s impossible.”

Outside the formal meeting room, Byrd and Philadelphia agreed to a $16 million, two-year contract, a huge step up from the $800,000 the outfielder earned this year from the New York Mets and Pittsburgh Pirates.

And catcher Brayan Pena finalized a two-year deal with the Cincinnati Reds worth $2,275,000. They were the first of the 168 major league free agents to switch teams this offseason.

Talk of limiting contact at the plate was the day’s most interesting development, one that could make Lou Brock’s shoulder-to-shoulder collision with Bill Freehan during the 1968 World Series and Pete Rose’s bruising hit on Ray Fosse in the 1970 All- Star game relics of baseball history, like the dead-ball era.

Torre said a written proposal will be developed that will be discussed when GMs gather again during the winter meetings, to be held at Lake Buena Vista from Dec. 9-12.

Torre said collisions when pitchers cover the plate on wild pitches and passed balls also are an issue. He planned to discuss the matter today with baseball’s rules committee. A change for 2014 would need the approval of the players’ association.

With 2012 AL Cy Young Award winner David Price two years from free agency, low-payroll Tampa Bay is exploring trades. The Rays’ $65 million payroll at the end of the season was 28th among the 30 clubs.

Texas also could make a big trade splash. Rangers GM Jon Daniels will consider offers for middle infielders Ian Kinsler and Elvis Andrus to clear a starting spot for 20-year-old Jurickson Profar