The Impact arrive in California on a horrible run of form which has seen them pick up just one point from a possible 15.
Galaxy, meanwhile, are not enjoying their best moment either, although the side from Los Angeles still remain an imposing prospect at home, with William Hill pricing them at 8/15 (1.53) for the win.
The Impact are offered at 5/1 (6.00) but with just one win in nine away matches, the Canadians are not an appealing option.
Six wins from their last eight home matches confirms the Galaxy's status as a clear favorites and, while the price for them to win outright is too small to consider, odds of17/20 (1.85) for them to win the first half look tempting.
The visitors from Montreal have had a problem conceding early goals recently, having lost the first half in four of their last five MLS fixtures.