Read more on the key matchup to watch in the Detroit Lions’ 2022 season-opening contest with the Philadelphia Eagles. Amon-Ra St. Brown’s first crack at proving his productive rookie campaign wasn’t a fluke comes Sunday against the Philadelphia Eagles. He’ll be looking to build upon a season in which he set franchise records for both receiving yards (912) and receptions (90) by a first-year Lions receiver. The 912 receiving yards were also fourth most among all rookie receivers, while his 90 catches were the second-highest total among all first-year wideouts. As a fourth-round draft pick (No. 112 overall), St. Brown…