NEW YORK (AP) — Baseball owners proposed banning high school players from signing with major league teams, raising the age for international amateurs and slashing the money spent on signing bonuses in negotiations for a new collective bargaining agreement Thursday. The amateur draft for players residing in the U.S., Canada and Puerto Rico would be cut from 20 rounds to 12 beginning in 2027 under the proposal Major League Baseball made during a bargaining session with the players’ association.