Uber has made a takeover bid for meal delivery group Grubhub, media reports said Tuesday, sparking a strong rally in shares of the Chicago-based group. Grubhub shares rose more than 20 percent on the reports in The Wall Street Journal and other media. The reports said Uber had made a specific offer for Grubhub but that no agreement had been reached. A deal would enable Uber to expand the operations of meal delivery through its Uber Eats service, which has seen strong growth during the pandemic even as its ride-hailing operations have slumped. The two firms did not immediately comment on the reports. The Journal said Grubhub earlier this year began a strategic review that could lead to the sale of the company. dho-rl/ft