Royals' Zack Greinke spotted talking with sons during game

Royals' Greinke set to make return from IL against Guardians

Royals tell Zack Greinke's side of viral fan interaction

Kansas City Royals' Zack Greinke (23) pitches during the Rays 4 - 2 victory over the Royals at Kauffman Stadium in Kansas City, MO (Credit Image: © Jacob Paulsen/Southcreek Global/ZUMApress.com Stock Photo - Alamy

Diamondbacks Sign Zack Greinke - MLB Trade Rumors

Giants reach three-year deal with Casilla - Giants Extra

Royals, Zack Greinke suffer a 1-0 loss to Minnesota Twins

Zack Greinke had cool moment with son after leaving Royals game

Greinke gets Opening Day nod - The Iola Register

Zack Greinke had cool moment with son after leaving Royals game

Zack Greinke reportedly re-signs with Royals on one-year contract, per reports.