The Dolphins, meanwhile, are 5-2 and going for the third 6-2 mark at the halfway point in the last four years.
The Dolphins have had good success against the Colts in recent years, but the games always have been close except for Indy's last visit to Miami when the Dolphins blew out the Colts, 41-6, in a Monday night game.
It figures to be a lot closer this time.
What follows is a preview of the Dolphins-Colts matchup.
WHO: Miami Dolphins (5-2) vs. Indianapolis Colts (6-1)
WHEN: Sunday, 1 p.m. ET
WHERE: Pro Player Stadium, Miami, Fla.
TV: CBS (Greg Gumbel, play-by-play; Phil Simms, analysis; Armen Keteyian, sidelines)
LINE: Dolphins by 3
NFL RANKINGS: Dolphins — 23rd in the NFL in total offense, 12th in rushing offense, 26th in passing offense, 11th in total defense, 1st in rushing defense, 27th in passing defense
Colts — 4th in the NFL in total offense, 25th in rushing offense, 2nd in passing offense, 18th in total defense, 27th in rushing defense, 10th in passing defense
COACHES: Dolphins, Dave Wannstedt (4th year with team); Colts, Tony Dungy (2nd year with team)
SERIES RECORD: The Dolphins lead 46-21
LAST FIVE MEETINGS: 2002 at Indianapolis, Dolphins 21, Colts 13; 2001 at Miami, Dolphins 41, Colts 6; 2001 at Indianapolis, Dolphins 27, Colts 24; 2000 playoffs at Miami, Dolphins 23, Colts 17 (OT); 2000 at Miami, Colts 20, Dolphins 13.
INJURIES: Dolphins — T Mark Dixon (ankle) is out; DT Larry Chester (hamstring/quad) and QB Jay Fiedler (knee) are questionable; QB Brian Griese (thumb), FB Rob Konrad (knee), TE Donald Lee (ankle), CB Sam Madison (quad), LB Junior Seau (hamstring), WR Sam Simmons (neck), T Wade Smith (ankle/Achilles) and WR Derrius Thompson (groin) are probable.
Colts — RB James Mungro (knee) and LB Jim Nelson (clavicle) are out; T Ryan Diem (abdomen) and DT Montae Reagor (chest) are doubtful; TE/FB Dallas Clark (hamstring), T Tarik Glenn (knee), DB Joseph Jefferson (pelvis) and RB Ricky Williams (ankle) are questionable; DB Cliff Crosby (groin), DB Walt Harris (knee), T Adam Meadows (knee), RB Dominic Rhodes (knee), G Steve Sciullo (knee) and WR Troy Walters (knee) are probable.