The Vikings worked out Day on Tuesday, Aaron Wilson of ProFootballNetwork.com reports.
The Browns released Day (back) with a non-football injury designation Tuesday.
Day (back) was placed on the active/non-football injury list Tuesday, Aaron Wilson of ProFootballNetwork.com reports.
Day signed a one-year contract with the Browns on Monday, Anthony Poisal of the Browns' official website reports.
Day signed with the active roster from the Browns' practice squad Tuesday.
The Browns signed Day to a contract Wednesday, Jeff Risdon of USA Today reports.
Day was waived by the Colts on Tuesday.
Day (knee) is officially activated from injured reserve Saturday.
Day (knee) is set to return to practice Wednesday, Andrew Walker of the Colts' official site reports.
Coach Frank Reich said Monday that Day (knee) will return to practice this week, Kevin Bowen of 107.5 The Fan Indianapolis reports.