Click on the player you'd like to edit the strike on
Hover over the player row you'd like to edit the strike on and left click. You'll then be shown a dialog to manage the player. Click on the "Strikes" tab to access player strikes.
Click on the edit pencil icon next to the player strike
Clicking on this icon will allow you to amend the player strike information. Once you've edited the strike, click on the "Edit Strike" button to save your change.
Player strike has been edited on the roster
The player strike will be edited on the roster and then viewable again when you click on the player row and click on the "Strikes" tab.