The Sky commentator, who has previously called out Red Bull's Helmut Marko for having a "personal issue" with the Schumacher name, once again shared his confusion about why his nephew Mick Schumacher was snubbed.
"Mick, for example, could have been available," said Ralf Schumacher when discussing the hiring of Ricciardo.
"But we discussed it many times and for some reason or another, the decision was made against Mick and then it was the next choice."
Fan favourite Ricciardo will be rejoining the grid in Eastern Europe when F1 heads to the Hungaroring for the Hungarian Grand Prix.
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