BARCELONA, June 15 : Mercedes have requested a right of review after Formula One stewards carried out a penalty U-turn and reinstated Alpine's Pierre Gasly to third place at this month's Monaco Grand Prix. The Frenchman had finished third on the road, moving up after others were penalised, but two post-race five-second penalties for pitlane speeding dropped him to seventh. Five drivers collected penalties in Monaco for the offence but the others did not have them overturned, either because they