Chelsea may regret selling Wayne Bridge with Ashley Cole now suspended for their Champions League semifinal against Barcelona.
The decision to sell Bridge to Manchester City for £12m in January and Paulo Ferreira's subsequent knee-ligament injury have left Hiddink searching for a Chelsea player capable of stopping Lionel Messi.
"The left-back situation might cause problems but we have time to think how we might resolve it," the manager said. "Barcelona are a very advanced team with very skilful players. They know how to handle the pace. I like their philosophy of football.
"They sign players who are attractive to watch. They like to play advanced attacking football and it is difficult to play them because they are a top side."