Baltimore Ravens (3-1) at Indianapolis Colts (2-2)

Sunday, 1:00 p.m. ET, at Lucas Oil Stadium, Indianapolis – TV: FOX

*TV announcers: Kevin Harlan, Rich Gannon

*Keys to the game: With 429 receiving yards, Steve Smith is officially the most productive 35-year-old wide receiver in NFL history through four games of a season. Defenses are beginning to recognize Smith isn’t easily contained by Father Time or single coverage. More opportunities are coming for TE Owen Daniels, quietly one of the most integral factors in Baltimore winning three straight, and vertical threat WR Torrey Smith. The names have not mattered at running back for Baltimore without Ray Rice. Justin Forsett leads the NFL in yards per carry (5.8) and fourth-round rookie Lorenzo Taliaferro has touchdowns in back-to-back games. Bernard Pierce could return from a leg injury this week to round out a solid co-op that must be productive to keep the Colts’ offense on the sideline.

Colts QB Andrew Luck leads the NFL in passing yards (1,305) and touchdowns (13) and seven Indianapolis receivers have at least 10 receptions. Baltimore is not deep at cornerback, and Luck is getting three and four options deep in his progressions behind a stabilized offensive line. If Baltimore cannot take the ball away and hit Luck when he escapes the pocket, it will be a long day for the Ravens.

*Matchup to watch – Colts C A.Q. Shipley vs. Ravens ILB C.J. Mosley: Shipley is holding off projected starter Khaled Holmes by adapting to a heightened tempo and fortifying protection in front of Luck. Veteran Daryl Smith and Ravens teammates rave about Mosley’s maturity and cognitive skills, which will be tested by Luck and his penchant to operate between the hashes to WR Reggie Wayne and TEs Coby Fleener and Dwayne Allen.

*Player spotlight – Colts LT Anthony Castonzo: Castonzo appears more polished this season and has gone 10 games — more than 45 attempts per game — without giving up a sack. Ravens OLB Terrell Suggs is hobbled and his 2014 production only modest, but he plans to play.

*Fast facts: Luck has 21 TD passes in his last eight games. … The Ravens are second in the NFL with 15 points allowed per game. The Colts lead the NFL with 34 points scored per game.

WHO WILL WIN AND WHY

The Colts are thriving with Luck making the rest of the Indianapolis cast look better than it truly is yet. Until teams find a way to make the rest of the skill players win, the Indy train keeps rolling.

*Our pick: Colts 30-20