While we don’t know if this is a serious injury, it’s worth noting that right calf problems have troubled Donaldson in the past. They played a part in limiting the former AL MVP to just 52 games in 2018 between the Blue Jays and Indians. That was a contract year for Donaldson, who still scored a one-year, $23MM deal with the Braves in the ensuing offseason. He stayed healthy in Atlanta last season, batted .259/.379/.521 with 37 home runs in 659 plate appearances, and then joined the Twins on a four-year, $92MM pact over the winter.
So far, the 34-year-old Donaldson has batted a paltry .182/.296/.318 with one homer in 27 PA as a Twin, though one can’t draw conclusions from such a small sample size. The Twins are certainly counting on Donaldson to be a major force in their lineup this season and during coming years. If he does miss time as a result of this injury, though, the Twins have other experienced third base options in Ehire Adrianza (who came in for Donaldson on Friday), Marwin Gonzalez, Luis Arraez and Miguel Sano on their 30-man roster.