If Dodgers slugger Yasiel Puig's house is hit by burglars again ... it won't be because of a lack of effort by cops.
Law enforcement sources tell TMZ ... cops have significantly increased their presence in the San Fernando Valley area where Puig's home -- and so many others -- have been hit by thieves.
Puig's 4th burglary -- the last one was this week -- was the catalyst for law enforcement to kick things up to nab some of these bad guys.
We broke the story ... LAPD got video footage of the suspects breaking into Puig's home after one of them kicked the front door open.