Crowley loves Jared Jones, but is woried about Jared Jones

The Pirates are going to have a great 1-2 punch with Paul Skenes and Jared Jones. They've lost the battle (game in Philly) but won the war by promoting Jones to the majors. He struck out 28 batters in his first three starts and pitched over six innings yesterday.. Jones throws 98 with regularity like a reliever and Crowley is worried he could have an elbow injury.