FREMANTLE could be without its two best small forwards for round one, after Hayden Ballantyne injured his calf and Michael Walters was reported during Sunday’s NAB Challenge clash against the Sydney Swans.

 

On a difficult day for football with strong winds and late rain, Ballantyne finished up with calf soreness that could signal a spell on the sidelines if a strain is diagnosed.

 

Walters was reported for misconduct in a third quarter incident when he ran into Craig Bird while the Swan’s head was over the ball.

 

Lyon didn't see the Walters collision but conceded Ballantyne's chances of facing Port Adelaide on April 5 were in jeopardy.

 

"We've got a couple of little concerns," Lyon said.

 

"[Tendai] Mzungu tightened up in the hamstring so I think he'll be OK, but Ballantyne looks like he’s hurt a calf so that's a concern.

 

"If it is, he’ll probably miss round one, so that's not ideal."

 

Mzungu was subbed off for Lachie Weller in the second half and David Mundy also tightened up late in what was a physical game.

 

But Nat Fyfe returned successfully from a hamstring injury and was one of the team's better players.

 

Lyon said fatigue wasn't the reason behind Ballantyne's injury.

 

"They're relatively fresh because under the CBA you get two three-day breaks, so they've had two consecutive weeks of three-day weekends," he said.

 

"It's not like they've been in at the club a lot.

 

"Maybe it's been ‘unders’ a little bit … everyone's going to get a soft tissue, you hope not to get them but it's part of the game and you try and get through unscathed but it doesn't always work that way."

 

Ruckman Aaron Sandilands didn't make the trip despite being named in the expanded squad but should play against West Coast next Sunday in their final NAB Challenge game.

 

"He tightened up … he's a unique frame so we're expectant he'll play against West Coast," Lyon said.

 

Lyon was pleased with the performance of Lachie Neale, who racked up 33 touches as the Dockers' best midfielder, but said Hayden Crozier and Tom Sheridan "could have done more" to press their cases for round one.

 

Meanwhile, the Swans will look to build Lance Franklin's game time next Sunday against Greater Western Sydney after he played around 60 minutes against the Dockers.

 

Assistant coach Henry Playfair said he would certainly rack up more minutes next week in Canberra.

 

"We came in with a plan and once he ticked off those minutes we were pretty happy to take him off the ground," Playfair said.

 

"We'll build from that next week.

 

"I thought [Franklin and Goodes] were OK. I thought they competed pretty well, Buddy laid a couple of really important tackles for us and 'Goodesy' seemed to be covering the ground pretty well.

 

"It was good for them to get some game time and they'll be important next week to get them some more game time for round one."

 

Bird was subbed off with a corked quad while Jarrad McVeigh didn't play because of a tight calf but was expected to face the Giants.