Chris Gruetzemacher picked up the biggest win of his career and left veteran Joe Lauzon a bruised and bloody mess. Gruetzemacher (14-3 MMA, 2-2 UFC) tore Lauzon (27-15 MMA, 14-12 UFC) up for most of the 10 minutes of their fight. Gruetzemacher couldn’t put Lauzon down in the second round, but the volume of punches he landed had Lauzon’s face looking way worse for the wear. Lauzon’s corner shut things down for him after 10 minutes. The lightweight bout opened up the main card of today’s UFC 223 event at Barclays Center in Brooklyn, N.Y. It aired on pay-per-view following prelims on FS1.