"We've added one of the best goalscorers in MLS history," said Minnesota manager Adrian Heath. "Given our current situation dealing with injuries we knew we had to make a move and we feel we have added another really important piece to our already potent attacking core.
"Every team we play now will know they have to contend with one of the best aerial threats in league history. We've been very dangerous on set pieces already this season and with the addition of Kei we are now even more dangerous. Kei has loads of experience and will no doubt be a benefit to this roster both on the field and in the locker room."
With the Loons corps of forwards having been depleted by injuries to Luis Amarilla and Aaron Schoenfeld, Minnesota was in need of attacking help and Sierra Leone international Kamara -- the fifth-highest goalscorer in MLS history with 129 goals -- fits the bill.
Minnesota marks a league record-tying eighth MLS team for which Kamara has played, according to Elias. In addition to the Rapids, the list includes the Columbus Crew (twice), the San Jose Earthquakes, the Houston Dynamo, Sporting Kansas City, the New England Revolution and the Vancouver Whitecaps.
His most prolific season came with the Crew in 2015, when he scored 26 league and playoff goals and was a finalist for the league's MVP award.
Kamara also spent time overseas in the English Championship with Norwich City and Middlesbrough.