SPFL chief executive says proposal would 'dramatically undermine the global appeal of football'.
Steven Gerrard's side host Aberdeen in the final round of fixtures and Celtic travel to Easter Road to face Hibernian.
The new rule allows clubs to make substitutes when a head injury is sustained or suspected.
Assistant manager Andy Millen said the club didn't take 'shortcuts' with Covid protocols.
Rugby Park club don’t know how their players became infected, and believe they have followed all of the protocols, but they’ll now look to convince the league of that.
Officials say season will not get underway until November 28 at the earliest due to ongoing public health concerns.
The pair were fined £2,500 each following a Scottish Football Association disciplinary hearing.
Alan Burrows says he is giving up his seat to allow for 'freshness' at the league body.
The SPFL have announced the fixture list for the coming season.
Lord Clark ruled that the dispute over relegation should be dealt with by an SFA -convened panel.
Stephen Robinson has been forced to tell players they won't get new contracts over Zoom.
SPFL chief delivers warning as talks continue on how to reintroduce sport amid coronavirus pandemic.
The Rangers boss wants an independent investigation into the SPFL's handling of the matter.
The league is holding separate conference calls with Premiership, Championship, League 1 and 2 clubs.
The Celtic boss says sport is secondary to the human cost of coronavirus.
The SFA and SPFl have taken the decision to cancel all games with immediate effect.
Cleared last week, the football manager said work had kept him going.
The Hamilton chairman has called for a gambling amnesty in Scottish football.