The Rockies designated Hudson for assignment Sunday.
The right-hander joined Colorado on a one-year, $1.5 million contract in January but struggled to a 5.84 ERA, 1.64 WHIP a 48:46 K:BB through 17 starts. Hudson also had a 4.98 ERA in 18 outings last season, so he may not generate significant interest on the waiver wire.