Behind a gold medal effort from LaShawn Merritt (men's 400m) and silver medals from Jenn Suhr (women's pole vault), Nick Symmonds (men's 800m) and Tony McQuay (men's 400m), Team USA grabbed four medals Tuesday. Go to the USATF Online Store to receive 20% off merchandise with promo code "WILKINSDISC". Offer expires noon (ET) Wednesday. #moscow2013 #USATF #MoscowCollection