Bayern Munich was boosted by the return to fitness of Kingsley Coman ahead of its UEFA Champions League clash at Arsenal.

The winger missed his side's 1-0 win over Werder Bremen with a sprain, but is available for Wednesday's (AEDT) Group F meeting with Arsenal at the Emirates Stadium.

Coman was part of the Bayern squad that set off for London on Monday (AEDT), although Arjen Robben remains sidelined with an adductor injury.

"Arjen Robben is close to a comeback but is not yet match fit," read a post on Bayern's official website.

Bayern sits top of the group having won both of its games, while Arsenal is without a point after surprises defeats to Dinamo Zagreb and Olympiacos.

"I'm feeling very good," said Bayern striker Robert Lewandowski, who has 19 goals in his last 11 games for club and country. "Arsenal are under pressure, but they're always dangerous at home."