The Marlins have signed Chris Sampson according to the right-hander's Twitter feed. He was in camp with the Rockies last month, but they released him at the end of Spring Training.
Sampson, 32 next month, had spent his entire career with the Astros before joining Colorado. He owns a 4.42 ERA in 358 2/3 career innings, striking out 4.4 men per nine while walking just 2.2 per nine. A 51.8% ground ball rate helps make up for the lack of whiffs.