Kansas City Royals’ Salvador Perez out 4-6 Weeks After Freak Knee InjuryKansas City Royals’ Salvador Perez out 4-6 Weeks After Freak Knee InjuryKansas City will be without Salvador Perez for up to 6 weeks after he sprained the MCL in his left knee while carrying a suitcase up stairs in his home.Associated PressAssociated Press