Pittsburgh Steelers star quarterback Ben Roethlisberger could be back in action earlier than expected after suffering from a knee injury earlier in the 2015 regular season.

According to Adam Schefter of ESPN.com, Roethlisberger will try to return for their Week 6 match-up with the Arizona Cardinals Sunday. The report added, however, that the return for Roethlisberger is a "long shot."

Roethlisberger, who had a sprained MCL and bone bruise in his knee against the St. Louis Rams in Week 3, was initially pegged to miss four to six weeks or a return in late October or early November.

If Roethlisberger miss the game against the Cardinals, Michael Vick will continue to play under center for the Steelers, which has a 3-2 win-loss record through the first five games of the 2015 regular season. With Vick, the Steelers went 1-1 with a 23-20 loss to the Baltimore Ravens in Week 4 and a 24-20 win over the San Diego Chargers in Week 5.

Pittsburgh started the year at 2-1 with victories over the San Francisco 49ers (43-18) and St. Louis Rams (12-6) after an opening day loss to the defending champions New England Patriots (28-21).

Roethlisberger had 192 passing yards on 20-of-24 completions with an interception before getting hurt in the Rams game. For the season, the 33-year-old QB has a total of 912 passing yards on 67-of-89 completions with 4 touchdowns and 2 interceptions.