Ben Roethlisberger
Pittsburgh Steelers quarterback Ben Roethlisberger (L) is sacked by Jacksonville Jaguars Rob Meirer in the third quarter during their AFC Wild Card NFL playoff football game in Pittsburgh January 5, 2008. Reuters/Jason Cohn

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.