(Adds Comcast, Twenty-First Century Fox, Calsonic Kansei, Bidcorp, Poste Italiane, AIG, Inercom, Paper Excellence)
Sept 21 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Friday:
** Comcast and Twenty-First Century Fox face a quick-fire auction for British broadcaster Sky on Saturday after neither side backed down in a drawn-out $34 billion battle.
** Adobe Systems Inc has agreed to buy Marketo Inc for $4.75 billion from private equity firm Vista Equity Partners Management, adding heft to its cloud-based digital marketing business.
** Hong Kong's CK Infrastructure Holdings Ltd, leading a A$12.98 billion ($9.46 billion) bid for Australia's biggest gas pipeline operator APA Group, has rejected suggestions that it is subject to influence from Beijing.
** Calsonic Kansei has lined up around 5 billion euros ($5.9 billion) in financing from Japanese banks to fund its proposed acquisition of Fiat Chrysler's unit Magneti Marelli, four sources familiar with the matter said.
** Buyout group Lone Star is considering a stock market flotation of German building materials maker Xella which it bought in 2016 for 2.2 billion euros ($2.6 billion), three people close to the matter said.
** Royal Dutch Shell Plc is in talks to sell its assets in a Gulf of Mexico oilfield to Focus Oil to pay for its takeover of BG Group Plc, Bloomberg reported, citing people familiar with matter.
** Medical equipment company Medtronic Plc will acquire Israel-based Mazor Robotics for about $1.64 billion in an all-cash deal, or $1.34 billion net of Medtronic's existing stake in Mazor, the companies said.
** Real estate investment trust Propertylink Group said the Australian arm of real estate developer ESR Group had made a A$693.2 million ($504.9 million) takeover offer for the company.
** Ride-hailing company Uber Technologies Inc is in early talks to buy food delivery company Deliveroo, Bloomberg reported, citing people familiar with the matter.
** International food distributor Bid Corporation Ltd (Bidcorp) said the prospective buyer for its UK logistics business is no longer interested in buying it, citing internal reasons.
** Poste Italiane is looking to increase its stake in payments services group SIA to nearly 50 percent to boost its presence in the fast-growing digital payments sector, two sources close to the matter said.
** American International Group Inc said the insurer will acquire Glatfelter Insurance Group, a York, Pennsylvania-based insurance broker.
** Netherlands-based Paper Excellence will argue in arbitration over its attempted takeover of Brazil's Eldorado Brasil Celulose SA that surging pulp prices played a big part in Eldorado's owners canceling the deal, according to documents seen by Reuters and two people with knowledge of the matter.
** Bulgarian energy producer Inercom said it has divested its solar energy business to clear regulatory objections to its takeover of the Bulgarian assets of Czech utility CEZ (Compiled by Karan Nagarkatti and Soundarya J in Bengaluru)