Mike Conway, Ryan Hunter-Reay and Alex Tagliani have all been placed on probation by the IndyCar Series for the rest of the year after falling foul of the 'avoidable contact' rule on numerous occasions.
The trio were all judged to have broken rule 9.3 of the IndyCar rulebook, which states that: "A competitor must not initiate or attempt to initiate avoidable contact that results in the interruption of another competitor's lap time or track position."
Andretti Autosport driver Conway was penalised for clashes with Ryan Briscoe at Toronto and Oriol Servia at Edmonton while his team-mate Hunter-Reay has been sanctioned for collisions with Briscoe at Barber Park and Takuma Sato at Edmonton (pictured).
Indianapolis 500 polesitter Tagliani, who drives for Sam Schmidt Motorsports was deemed to have broken the rules by making contact with Will Power at Toronto and Graham Rahal at Edmonton.
All three drivers have been given an opportunity to protest the decision.