The professional wrestlers of the Raijin stable are racking up their wins, and so is Matsutaro for that matter. But as to the beginner-level wrestlers, their nerves are getting the best of them; none of them are winning.
Let me bargain with you. 
Can you reduce the price for us?
Lass uns verhandeln.
 Kannst du den Preis nicht reduzieren?
Déjame negociar contigo. 
¿Puedes hacernos una rebaja?
Déjame negociar contigo. 
¿Puedes hacernos una rebaja?
Vamos negociar. 
Dá pra fazer mais barato?