LB Marvin Jones was sent to the hospital during practice this morning, after being hit in the throat by another player's arm. Jones was having trouble talking, but was breathing normally…FB Jerald Sowell left practice with an injured hamstring. The injury did not appear to be serious…Herm Edwards said that the main practice field, which is grass, is in poor condition after two weeks of training camp. Players, particularly the bigger guys, have been slipping around. Edwards said that a lawn doctor was coming to check the field in the afternoon, and he hopes that new sod can be laid down…SS Nick Ferguson had an interception in practice this morning…QB Vinny Testaverde hit WR Santana Moss on a wide open bomb late in practice…LB Sam Cowart and G Randy Thomas participated a lot in practice this morning. Both players are trying to catch up, after missing several practices…Former Jets quarterback Boomer Esiason visited practice again today.