Tyler Colvin finished 2-for-4 with two doubles and a run scored in a 6-4 win against the Marlins on Thursday. Colvin has blistered the ball in sporadic playing time since his Saturday promotion. He's 6-for-13 (.462) with three doubles, a triple, a homer, three RBI and three runs scored. Colvin is an extremely streaky hitter with direct access to playing time with Mike Morse having shifted to first to cover for Brandon Belt. If he keeps raking, he'll keep playing, and on that chance alone, NL-only owners might want to make a speculation add here. The name Tyler Colvin is radioactive to some fantasy owners, but keep in mind he has a .460 career MLB slugging percentage, has slugged .500 or more in over 350 at-bats twice, and is still only 28.