BERLIN (AFP) - German club Hertha Berlin are set for a multi-million-euro cash injection which could pave the way for Arsenal goalkeeper Jens Lehmann to return to the Bundesliga, a report said Wednesday.

A Hertha board meeting on Monday revealed a group of Berlin investors are ready to pump 25 million euros into the club to allow the mid-table Bundesliga side to clear debts and splash out on the transfer market.

The Berliner Morgenpost reports the club want to halve their 46-million-euro debt by 2010 and the board of directors have approved the proposed investment which could also strengthen the squad.

Lehmann, who has played for Schalke 04 and Borussia Dortmund, has been a Berlin target for several months and has yet to accept Arsenal's offer to extend his contract which runs out at the end of the season.

Hertha are keen to attract a star of Lehmann's calibre as they have not won the German title since 1931 and are rarely able to fill Berlin's 70,000-capacity Olympic Stadium.

Arsenal manager Arsene Wenger has criticised Lehmann for his short temper, which cost his club a late goal in the 2-2 draw at Tottenham last weekend.

Lehmann, 37, received his eighth yellow card of the season, after appearing to elbow Dimitar Berbatov during Saturday's game, and Wenger was far from happy with his first-choice goalkeeper.

Spurs' striker Robbie Keane scored from the corner straight after the incident and the Gunners boss believes his keeper's short fuse is a problem.

"It is a problem with him. The time we lost before the Spurs corner was taken made a difference," Wenger told British tabloid The Mirror this week.