Jameson allowed five runs on seven hits and one walk while striking out four over three-plus innings in Sunday's spring start against the Rockies.

EDGE Analysis

Jameson allowed a pair of home runs in his fourth Cactus League start. The right-hander got off to a good start this spring in his quest to claim the No. 5 starter job, but he's been knocked around his last two times out with eight runs and 11 hits allowed over the last 5.2 innings. Jameson's main competition for the job, Ryne Nelson, appeared as a reliever Sunday and fared better (one run, four hits, 2.2 IP).