Sports

Dolphins 24, Jaguars 3

Jaguars go out with a whimper against Dolphins

MIAMI — Chad Henne’s prettiest pass of the day was wiped out by a miscommunication involving a backup tackle and the referee.

Hapless as ever, the Jacksonville Jaguars had two touchdowns taken off the scoreboard, got stopped three times on fourth down, and lost Henne’s homecoming game to the Miami Dolphins, 24-3.

Amid a flurry of Jacksonville mistakes, one loomed as the turning point Sunday. With the score tied in the second quarter, an illegal-substitution penalty involving tackle Guy Whimper cost the Jaguars a touchdown.

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‘‘Definitely a frustrating day,’’ running back Montell Owens said. ‘‘It’s always frustrating when you don’t win a ball game. A lot of it was self-inflicted.’’

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Miami (6-8) won for only the second time in the past seven games. The Jaguars (2-12) only helped their chances of getting the No. 1 draft pick next April, with a home game against the Patriots looming next weekend.

‘‘We were not as disciplined as we have been — or we will be,’’ Jacksonville coach Mike Mularkey said. ‘‘Every time we take a step forward, we take two steps back. I take total blame for that.’’

Henne, playing in Miami for the first time since he departed as a Dolphins bust last offseason, threw for 221 yards with no turnovers. But he was outplayed by rookie counterpart Ryan Tannehill, who had a season-high rating of 123.2.

Tannehill went 22 of 28 for 220 yards and two scores with no interceptions, and he ran eight times for 52 yards. Reggie Bush rushed for 104 yards, including a 53-yarder to set up a field goal.

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Jacksonville appeared to take a 10-3 lead when Henne threw a 20-yard scoring pass to Justin Blackmon. But the play was negated because Whimper had entered the game as a third tackle — as he had done five times earlier — without reporting as an eligible receiver.

Instead of the score, the Jaguars retreated to their 25 and eventually lost possession.

‘‘That turned the whole game around,’’ Miami linebacker Karlos Dansby said.