Twitter Inc. was left at the altar on Friday after Salesforce . com Inc. walked away from pursuing a combination, all but extinguishing hopes for a near-term sale of the social-media company as it struggles to accelerate revenue growth.

A reversal by Salesforce Chief Executive Marc Benioff, who previously had signaled interest in a tie-up, calling Twitter an “unpolished jewel,” follows the departure of other prospective suitors, including Walt Disney Co. and Google parent Alphabet Inc .

The withdrawal of business software provider Salesforce sent Twitter shares, already battered by diminishing expectations for a sale, down another 5% to $16.88 at 4 p.m. in New York trading on Friday.

While interest from another company could still emerge, Twitter’s fate, at least for now, will rest on the shoulders of CEO Jack Dorsey, who so far has failed to prove he can revive growth in a way that can propel advertising revenue. In the second quarter, Twitter added just 1% more users to give it 313 million, and its revenue growth shrank for the eighth straight quarter to under 20%.

Some analysts expect Twitter, whose loss topped $100 million in the second quarter, will need to make sharp staffing cuts or sell parts of its business to survive.