Deichmann signed a minor-league contract with the Athletics on Thursday, Melissa Lockard of The Athletic reports.
Deichmann was selected by the A's in the second round of the 2017 MLB Draft before getting shipped to the Cubs in 2021 as part of the Andrew Chafin trade. He batted just .214/.271/.335 with seven home runs and eight stolen bases in 78 games last summer at Triple-A Iowa.