Major League Dad (Heartsong Presents)

is book #529 of the Heartsong Presents line.
==Book Description==
Mason Walker had hoped to reconcile with his annulled bride ten years ago, but Blair never met him outside their favorite Italian restaurant. To ease the pain, Mason threw himself into his career as a major league baseball player. Just when he thinks he has outrun his past, he makes a life changing discovery - his and Blair's son, Sam.
Blair never anticipated that Mason would be attending her son's baseball camp - or the surge of emotion that accompanied seeing him again. And she definitely didn't anticipate her son's instant affinity for the man he never knew as "dad." After all she's been through, why would God allow this to happen now?
(Description from fictiondb.com)