Jankowski (upper body) didn't practice Monday and is week-to-week, according to Brooks Bratten of the Predators' official site.
Jankowski scored a goal on three shots in Monday's 5-2 win over the Hurricanes.
Jankowski scored his first goal of the season in Wednesday's 3-2 loss to Toronto.
Jankowski provided an assist, three shots on goal and a plus-2 rating in Saturday's 4-1 win over the Jets.
Jankowski (upper body) will return to the lineup Saturday versus Colorado, according to Robby Stanley of NHL.com.
Jankowski is a late scratch from Thursday's game against Edmonton due to an upper-body injury. The Predators consider him day-to-day.
Jankowski recorded an assist in Tuesday's 7-3 loss to the Kraken.
Jankowski produced a goal and an assist in Sunday's 4-3 overtime loss to the Wild.
Jankowski inked a two-year contract extension with the Predators on Friday, according to Predators Radio Host Max Herz.
Jankowski was recalled from AHL Milwaukee on Saturday, Nick Kieser of 102.5 ESPN Nashville reports.