Oviedo (elbow) has been throwing from 120 feet four times per week, MLB.com reports.
Oviedo (elbow) has increased his throwing distance off flat ground to 105 feet as of Aug. 2, MLB.com reports.
Oviedo (elbow) resumed throwing from 75 feet earlier this month, MLB.com reports.
Oviedo (elbow) began a throwing program last week at the team's facility in Florida, Noah Hiles of the Pittsburgh Post-Gazette reports.
Oviedo (arm) is expected to get clearance to resume throwing within the next week, MLB.com reports.
The Pirates placed Oviedo (elbow) on the 60-day injured list Wednesday.
Oviedo (elbow) underwent Tommy John surgery Wednesday, Jason Mackey of the Pittsburgh Post-Gazette reports.
Oviedo will undergo Tommy John surgery on his right elbow, Francys Romero of MLB.com reports.
Oviedo is dealing with a right elbow injury which could potentially require Tommy John surgery, Jason Mackey of the Pittsburgh Post-Gazette reports.
Oviedo (9-14) earned the win over the Cubs on Thursday, yielding four hits and five walks while striking out five batters six scoreless innings.