X0101 EFFECT 33 LIVE 2017-04-19 0000754915-17-000016 485APOS 0000754915 T. Rowe Price High Yield Fund, Inc. 002-93707 S000057617 T. Rowe Price U.S. High Yield Fund C000183992 T. Rowe Price U.S. High Yield Fund S000057617 T. Rowe Price U.S. High Yield Fund C000183993 T. Rowe Price U.S. High Yield Fund-Advisor Class S000057617 T. Rowe Price U.S. High Yield Fund C000183994 T. Rowe Price U.S. High Yield Fund-I Class