Ober (7-5) took the loss Sunday against the White Sox, allowing one run on four hits and three walks while striking out six across 4.1 innings.
Lee went 2-for-3 with a solo home run in Sunday's 10-1 loss against the White Sox.
Holmes (6-7) took the loss against the Marlins on Sunday, allowing eight runs on six hits and three walks in 4.1 innings. He struck out two.
Happ was scratched from the lineup for Sunday's game against the Marlins due to left knee discomfort, Vinnie Duber of the Chicago Sun-Times reports.
Manager Craig Counsell said he "fully expects" Webb (forearm) to be available to pitch Sunday against the Marlins, Vinnie Duber of the Chicago Sun-Times reports.
Manager Derek Shelton said that Ryan (glute) checked out fine after completing a bullpen session Saturday and is likely to return from the 15-day injured list to make his next start with the Twins, Audra Martin of Twins.tv reports.
Assad didn't factor into the decision in Saturday's 6-5 win over the Marlins, giving up three runs on three hits and five walks over 4.2 innings. He struck out three.
Hoerner went 3-for-5 with an RBI in Saturday's 6-5 win over the Marlins.
Conforto went 2-for-3 with a solo home run and an additional run scored in Saturday's 6-5 win over the Marlins.
Zeferjahn tossed 1.2 scoreless innings of relief to earn the save in Saturday's 6-5 win over the Marlins. He walked one and struck out one.
