This article references Luke Weaver and more! St. Louis Cardinals starting pitcher Luke Weaver has "bulked up" by adding about 15 pounds this offseason. Weaver is expected to take on a much larger role in the St. Louis starting rotation this season, so he made a plan to bulk up in order to keep him from wearing down later in the season. The young righty comes with some risk, but has nice upside in the later rounds of fantasy drafts.Keep on reading: Luke Weaver Has Put On About 15 Pounds