Getty J.J. McCarthy #9 of the Minnesota Vikings warms up before the preseason game against the Las Vegas Raiders. Support for J.J. McCarthy continues to illustrate why the Minnesota Vikings traded up to select him No. 10 overall in the draft and their reluctance to commit to any veteran long-term, with versatile safety and teammate Josh Metellus offering a ringing endorsement. McCarthy missed his rookie season with a torn meniscus, but he is going through his second training camp. Metellus, a