Preseason -- Patriots vs. Ravens: What to watch for

6 .Kickoff and punt returners: Special teams can often be a ticket for a player to earn a roster spot, and speedy fifth-round draft choice Matthew Slater, shown here returning a kick in practice, should have a chance to open eyes as a kickoff returner. On punt returns, Jackson is likely to have a chance to add to his value.

6 .Kickoff and punt returners:


Special teams can often be a ticket for a player to earn a roster spot, and speedy fifth-round draft choice Matthew Slater, shown here returning a kick in practice, should have a chance to open eyes as a kickoff returner. On punt returns, Jackson is likely to have a chance to add to his value.
(Globe Staff Photo / Matthew J. Lee)