Lopez will be stretched out to potentially serve as a starter this season, Nathan Ruiz of The Baltimore Sun reports.
Lopez made 25 of his 33 appearances last season as a starter, but he finished in a bullpen role. The 29-year-old struggled to a 6.07 ERA and a 1.63 WHIP across 121.2 innings while posting a 3-14 record. He's posted an ERA north of 6.00 in each of the last three years, so he's unlikely to be more than a fifth starter should he land in the rotation, and it's very possible he ends up in a multi-inning relief role at some point.