July 23 (Reuters) - The following are the top stories in the Wall Street Journal. Reuters has not verified these stories and does not vouch for their accuracy.

- Union Pacific UNP.N struck a deal with Canadian National Railway CNR.TO to give the Montreal railroad further access in the Midwest in exchange for ending its opposition to the American railroad company's $71.5 billion merger with Norfolk Southern NSC.N.

- The European Union approved Paramount's PSKY.O $81 billion bid to buy Warner Bros Discovery WBD.O after the companies offered concessions related to film distribution in Europe.

- IBM IBM.N CEO Arvind Krishna pushed to shift the company’s sales force further from large licensing deals to consumption-based cloud models, after the tech giant lowered its full-year revenue growth forecast.

- Taco Bell executives convened late-night meetings and set up a war room to manage the chain’s response to a cyclospora outbreak linked to shredded lettuce, with officials diverting supply trucks and mobilizing field teams to throw out cases of lettuce linked to the disease.

- U.S. warehouse landlord Prologis PLD.N sweetened its final takeover bid for U.K. rival Segro SGRO.L to 14 billion pounds ($18.74 billion) and ruled out further increases.

- Penske Corp and Mitsui 8031.T proposed to buy out Penske Automotive Group PAG.N in a deal potentially worth $3.78 billion, offering $210 a share to take the auto dealership chain private.

($1 = 0.7471 pounds)