What to keep an eye on in regular-season game No. 4 against the Ravens:HOME SWEET HEINZ:
The Steelers will be out to maintain their home-field mastery at Heinz Field. They're 1-0 there this season and head coach Mike Tomlin is 48-17 in the regular season at home. The Steelers are 82-30-1 overall at the facility since it opened in 2001.
CATCH AS CATCH CAN:The matchup features the NFL's No. 2 and No. 3 receivers. Steelers WR Antonio Brown is second with 436 receiving yards (on 19 catches) and Ravens WR Steve Smith, Sr. is third at 349 yards (on 25 receptions).ON A ROLL:**
Steelers second-year DE Stephon Tuitt is on a sacks streak for the first time in his career after collecting one-and-a-half sacks against San Francisco and another against St. Louis.STARS AREN'T ALIGNED:
Both teams will have to get by minus critical components. Steelers QB Ben Roethlisberger is out indefinitely (knee) and Ravens LB Terrell Suggs (Achilles) is out for the season.GROUND GIVEN GRUDGINGLY:
The Ravens haven't allowed a 100-yard rusher in 29 consecutive games, the longest active streak in the NFL (Atlanta and Philadelphia are tied for second at 15 each).ARROW POINTING UP:
The Steelers emerged from their 12-6 win at St. Louis with an opportunity to grow "infinitely," according to Tomlin, given the difficult nature of the game and the number of contributions necessary from a number of players on all three phases to pull it off. Can they build on what they achieved against the Rams and continue getting better against the Ravens?ANOTHER OPPORTUNITY:
Steelers QB Mike Vick replaces Roethlisberger with a career record of 59-50-1 as an NFL starter. Vick went 1-2 in 2014 with the Jets, 2-4 in 2013 with the Eagles and 3-7 for Philadelphia in 2012. His last winning season as a starting QB was in 2011 with the Eagles (7-6).