Calgary Stampeders running back Jon Cornish did not practice on Monday, still recovering from a concussion he suffered in Week 1 against the Montreal Alouettes.
Stampeders head coach John Hufnagel said the CFL's reigning Most Outstanding Player is still working to pass the first step of the League's concussion protocol.
No determination has been made on Cornish's status for the Stampeders' Week 3 contest against the Toronto Argonauts.
Cornish was injured in the fourth quarter of the Stampeders' 29-8, season-opening victory over the Alouettes on a high hit by linebacker Kyries Hebert.
Hebert was ejected from the game on the play and Cornish told reporters after the game that he was knocked out cold following the blow to the head.
The Stampeders did not play in Week 2.