The Cubs activated Wesneski (foreram) from the 15-day injured list Friday, Meghan Montemurro of the Chicago Tribune reports.

Wesneski (forearm) began a rehab assignment with Triple-A Iowa on Sept. 6 and has given up three earned runs on seven hits and two walks while striking out seven across five innings over his four appearances.

Wesneski (forearm) will throw a live batting practice session Wednesday, Maddie Lee of the Chicago Sun-Times reports.

Wesneski (forearm) threw a 25-pitch bullpen Tuesday, Maddie Lee of the Chicago Sun-Times reports.

The Cubs placed Wesneski on the 15-day injured list Saturday with a right forearm strain, Andy Martinez of Marquee Sports Network reports.

Wesneski worked in relief of starter Justin Steele in Friday's 5-2 loss to the Diamondbacks, striking out one over 1.1 scoreless innings while giving up one hit and no walks.

Wesneski (3-6) took the loss in the first game of Saturday's doubleheader against the Cardinals, surrendering 11 runs (four earned) on 10 hits and a walk over four innings. He struck out four.

Wesneski (3-5) allowed a hit and a walk while striking out two over 6.1 innings, earning the win Sunday over the Angels.

Wesneski (2-5) took the loss Tuesday versus the Phillies, giving up five earned runs on five hits and three walks while striking out seven batters over five innings.

Wesneski will remain in the Cubs' rotation following the injury to Javier Assad (forearm), Patrick Mooney of The Athletic reports.