Effenberg branded Becks an "underhand" player who delivers sneaky fouls on his opponents in contrast to former Manchester United captain Roy Keane who the German player called tough but fair.
"Yes, there were (duels)," Effenberg told the tabloid. "Also with Roy Keane. But Beckham was the more underhand of the pair. Roy Keane was hard and fair. He came from in front, knocked you away, everything was wonderful."
The former German international continued: "But Beckham always came from behind, in the Achilles, I didn't like that. You didn't see him, and suddenly he clobbered you from behind in the tendon. No, Beckham was underhand."