Arenado used his no-trade clause to block a potential trade to the Astros, Mark Feinsand, John Denton and Brian McTaggart of MLB.com report.
Arenado is willing to play some first base in order to create roster flexibility for the team acquiring him in a potential trade, Katie Woo of The Athletic reports.
The Cardinals are expected to gauge trade interest in Arenado this month, Derrick Goold of the St. Louis Post-Dispatch reports.
Arenado is not in Sunday's lineup against the Giants.
Arenado isn't in the Cardinals' lineup for Saturday's game against the Giants, John Denton of MLB.com reports.
Arenado is not in the lineup for Thursday's game in Colorado.
Arenado went 3-for-3 with a double, two walks, one RBI and two runs scored in Wednesday's 10-5 win over the Pirates.
Arenado (shoulder) is playing third base and batting cleanup Saturday against the Mariners.
Arenado is out of the lineup for Tuesday's game against the Padres, Jeff Jones of the Belleville News-Democrat reports.
Arenado went 1-for-4 with a solo home run in Saturday's 5-2 win over the Dodgers.