The St. Louis Cardinals might not have predicted that it would be so challenging to trade superstar third baseman Nolan Arenado before heading into the offseason.

The Major League Baseball offseason charges on, just a day after news broke that Roki Sasaki has agreed to sign with the Dodgers. Plenty of quality free agents remain (free agent tracker) and there's always the trade market.

Nolan Arenado, amid trade rumors, remains focused on his Spring Training, sharing a 'Progress' message on Instagram. MLB Insider Ethan Hyatt suggests the San Diego Padres as a suitable team for Arenado,

Nolan Arenado's unexpected Instagram post has fans and analysts buzzing, sparking MLB trade speculation about his future with the St. Louis Cardinals.

The St. Louis Cardinals might not have predicted that it would be so challenging to trade superstar third baseman Nolan ... Roki Sasaki could potentially open a door for Arenado to rejoin the ...