But Wannstedt said the report was inaccurate.
"There was good news this morning with Mark Dixon: There was hardly any swelling at all," Wannstedt said. "He'll be questionable this week. That's the worst of it. There is a chance he might play. It's not a high ankle sprain. The doctor actually could see the veins in his ankle, which tells you there hardly was any swelling."
The Dolphins weren't so lucky when it came time to kick returner Albert Johnson, who probably will be lost for the season after sustaining a torn ACL in his left knee.
He was injured late in the game after having his best performance of the season.
In fact, all the special teams played well against Kansas City.
"When you don't win, there's not many good things to talk about," Wannstedt said. "But we covered good, we punted good, we had good returns, punts and kickoffs. ... Then you don't get anything to show for it."
The Dolphins also succeeded in shutting down RB Priest Holmes, who was held to 52 yards on 23 carries. Wannstedt said that was the first priority in the defensive game plan — but, then again, stopping a stud running back always comes first.
"Every game has to start that way," Wannstedt said. "When you start with the defensive game plan, you stop the run and go from there. We did that, but we gave up too many plays in the passing game."
That obviously is an understatement, given the fact Trent Green passed for 328 yards and five touchdowns, including three to tight end Tony Gonzalez.
But it's not as though Wannstedt expected the Dolphins to waltz into Arrowhead Stadium and shut out the Chiefs.
"We knew they were going to score some points," Wannstedt said. "You can watch the film when they scored 38 points at New England. Gonzalez just started getting into it. We knew; I thought offensively we would match them. I expected it to come down to a touchdown late in the game and be in the 30s, 20s, 40s."