The Arizona Cardinals got in their second day of practice work on Thursday in preparation for the February 1st Super Bowl showdown versus the Steelers. RB J.J. Arrington (Knee) sat out for the second straight day on Thursday. DE Travis LaBoy (Biceps) was limited in participation on Thursday after sitting out on Wednesday. P Ben Graham (Groin) and DE Antonio Smith (Knee) were both limited for the second straight day on Thursday. WR Anquan Boldin (Hamstring) practiced fully for the second straight day.