Saha scored two superb goals to help his side beat Chelsea 2-1, but wasted a penalty and saw another couple of chances fly wide.
'He should have had four, not two!' smiled Moyes, who pre-match had called on his top scorer to rediscover the firepower which had brought him 12 goals before Christmas, but only one from the penalty spot since then, before last night.
'I've challenged him again,' Moyes added. 'I gave him a slight pat on the back, but not a full one.
'I thought Louis played really well against John Terry down at Stamford Bridge and he did it again tonight. I think John Terry was worried when the long ball dropped over the top and Louis took it on his chest but, hey, John Terry's a top centre-half and if they don't want him I'll have him!'
The Blues boss also singled out American international Landon Donovan for 'maybe his best performance so far for us.'