EDMONTON -- The Edmonton Oilers activated forwards Leon Draisaitl and Drake Caggiula from injured reserve before Tuesday night's game at Pittsburgh.

Draisaitl, who has three points in three games this season, missed four games after experiencing concussion symptoms.

He signed a US$68-million, eight-year contract with the Oilers last summer. Draisaitl, 21, has 140 points (51 goals, 89 assists) in 194 career NHL games.

Caggiula, 23, has appeared in two games with Edmonton this season and has 18 points (7-11) in 62 career NHL games.

Also Tuesday, the Oilers assigned forward Brad Malone to the American Hockey League's Bakersfield Condors.