Nicasio was placed on the restricted list for personal reasons Tuesday, Brian McTaggart of MLB.com reports.
Nicasio's contract was selected by the Rangers on Saturday.
Nicasio was reassigned to the Rangers' alternate training site Sunday, Levi Weaver of The Athletic reports.
Nicasio (back) is serving as the starting pitcher in the Rangers' intrasquad matchup Monday.
The Rangers added Nicasio (back) to their 60-man roster pool Thursday.
Nicasio was scratched from an appearance Monday due to tightness in his back, T.R. Sullivan of MLB.com reports.
Nicasio signed a minor-league deal that includes an invitation to spring training with the Rangers on Saturday, Bob Nightengale of USA Today reports.
Nicasio (shoulder) was activated from the injured list Tuesday, Matt Breen of The Philadelphia Inquirer reports.
Nicasion (shoulder) will throw off a mound Tuesday, Scott Lauber of The Philadelphia Inquirer reports.
Nicasio (shoulder) was placed on the 10-day injured list Saturday.