PITTSBURGH (AP) — Chicago Cubs right-hander Yu Darvish has inflammation in his right triceps but no structural damage, and could start a throwing program as soon as the weekend.Darvish, signed to a $126 million, six-year contract in February as a free agent, underwent an MRI on Tuesday in Chicago. The Cubs announced the results before playing the Pittsburgh Pirates on Wednesday night."Doesn't sound awful," Cubs manager Joe Maddon said. "He'll get on his program soon, then we'll work it from there. It's good news on his side."The Cubs also placed right-handed reliever Carl Edwards Jr., on the 10-day disabled list with right shoulder inflammation, and recalled right-hander Cory Mazzoni from Triple-A Iowa. Edwards felt discomfort in his shoulder Tuesday night after pitching one scoreless inning in an 8-6 victory over the Pirates.Darvish got his first win with the Cubs in his previous start at Cincinnati on May 20, holding the Reds to one run and two hits in six innings. In eight starts, he is 1-3 with a 4.95 ERA.Left-hander Mike Montgomery will again take Darvish's rotation Saturday night against the Mets at New York. He started for Darvish on Monday and pitched 5 2/3 scoreless inning in a victory over the Pirates.Edwards has made 25 appearances, going 2-1 with a 2.88 ERA. The Cubs do not yet have a timeline for when he will resume throwing.Mazzoni made one relief appearance for the Cubs on May 7, working one scoreless innings against the Miami Marlins. He was 3-2 with two saves and a 1.25 ERA in 14 games with Iowa.___https://apnews.com/tag/MLBbaseball