Jackson Racing and Lee Johnston have parted company just days before practice for TT 2017 starts.

Yesterday it was confirmed Josh Brookes will ride for the team in the two supersport races.

He will compete on the bike John McGuinness was due to campaign.

Jackson Racing say they are talking to another rider and are hopeful they can have two supersport machines on the grid.

They will also prepare the superbike so it is available should the right rider sign - even though they admit time is rapidly running out.