Fernando Alonso has urged teammate Kimi Raikkonen to "improve".
Spaniard Alonso has utterly dominated his fellow former champion at Ferrari since the Finn returned to the Maranello team for 2014.
He argues Raikkonen's struggles are now hurting Ferrari, who at Hockenheim fell behind Williams in the fight for third place in the constructors' standings.
"We have only been able to count on one car again and we have to improve on that."
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