The Pittsburgh Pirates today recalled right-handed pitcher Hunter Stratton from Triple-A Indianapolis. The Pirates have also selected the contract of outfielder/first baseman Billy McKinney from Indianapolis.

Infielder Ke’Bryan Hayes has been placed on the 10-day injured list with low back inflammation.

Right-handed pitcher Ryder Ryan has been designated for assignment.

In addition, outfielder Joshua Palacios has been returned from his rehab assignment, reinstated from the injured list (left hamstring strain), and optioned to Indianapolis.

McKinney reached base safely in each of his last 16 games with Indianapolis prior to being promoted to the big leagues today, going 20-for-53 (.377) with three home runs, six RBI and a 1.015 OPS.

McKinney will wear uniform No. 29.

Stratton tossed a combined 2.1 scoreless innings in two relief appearances during his most recent stint with Indianapolis after being optioned to Triple-A on August 9.