Fyfe twice dislocated his troublesome left shoulder earlier this year before being sent in for surgery.
Fremantle's midfield has struggled to cope at times without the classy on-baller, but Lyon said the club was taking a careful approach with Fyfe given his history of shoulder problems.
"Nat Fyfe is absolutely tearing the house down with work, but he'll be round 18, if that," Lyon said today.
The Dockers take on Melbourne (away) and GWS (home) before tackling Port Adelaide at AAMI Stadium in Round 18.
Defender Zac Dawson, who
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