"Chykie did really well," coach John Harbaugh said. "He was up and down at camp and understanding the defense [from a] discipline standpoint. Chykie got out there and made a lot of the right decisions."Brown and running back Anthony Allen, the team's seventh-round choice, may be the two draft picks with the longest odds at securing spots on the 53-man roster. Being drafted by the organization usually indicates that the club will retain a rookie, but Brown knows that's no guarantee.