Betts was the A.L. MVP last season and Price CRUSHED IT during the playoff run -- but got NO LOVE from Trump since they didn't show up to the White House on Thursday.
Same with Alex Cora.
Trump had glowing remarks for Chris Sale -- complimenting his World Series performance and the fact he struck out 14 batters Wednesday night in a regular season game against the Orioles.
Trump also invited the Red Sox players and staff in attendance to a personal tour of the Lincoln Bedroom -- a room that's supposed to be off-limits to the public.
TMZ Sports shot footage of some of the key execs arriving at the White House before the ceremony -- including VP of Baseball Operations Tony La Russa, owner John Henry, President of Baseball Operations Dave Dombrowski and others.
Earlier Thursday, the Red Sox visited the Walter Reed National Military Medical Center in the D.C. area -- where they visited patients.