Wachovia Corp. is reportedly in preliminary talks with suitors including Banco Santander SA, Wells Fargo & Co. and Citigroup Inc., and the bank's shares slid lower in late trading on concerns it may take another big mortgage-related write-down. A sale to either Banco Santander, Wells Fargo, or Citigroup would make Wachovia the latest victim of the ongoing credit crisis, as the bank has succumbed to the triple threat of falling real estate prices, overaggressive lending and panic in the credit markets.