380 to 420k is the standard yearly rate for beginning major leageurs. They are basically under contract with the team that drafted them for six years. Exceptional performers are given raises as an act of good faith. Boston gave closer Jonathan Papelbon a raise to 775k this year, around twice what they were required under contract. As a free agent, he should be worth at least as much as Yankees closer Mariano Rivera, who is making $15 million a year.
MLB because there isn't a Cap on how much teams can spend on any one player.
MLB player Steve Pearce made $850000 in the 2014 season.
MLB player Adam Ottavino weighs 230 pounds.
MLB player Anthony Rendon weighs 190 pounds.
MLB player Jose Iglesias weighs 185 pounds.
MLB player Kyle Seager made $540100 in the 2014 season.
MLB player Leury Garcia weighs 170 pounds.
MLB player Wil Myers made $504200 in the 2014 season.
MLB player Jose Quintana weighs 220 pounds.
MLB player Chris Carter weighs 248 pounds.
MLB player David Peralta weighs 160 pounds.
MLB player Derek Dietrich weighs 200 pounds.