Chelsea are experiencing a decline in performance lately, where in the previous 4 matches they have not won even once, so it is clear that the match when hosting Bournemouth later will not be an easy match for them and also considering Bournemouth are in a positive phase this season so I think even though Chelsea chances of winning are higher, it does not rule out the possibility of losing again.
Thus the safest bet in their match is BTTS.
Actually, Bournemouth and Chelsea's performances are almost balanced so I think maybe they will get a draw but this match will be held at Chelsea's home ground so I think Chelsea will play as hard as possible in front of their supporters, if I myself am still quite sure Chelsea can still perform well in the EPL their poor performances lately will be used as evaluation material by the coach I predict Chelsea's victory and the worst result is a draw.
It's half time already and yet it seems Chelsea still struggling another goal after scoring their first goal at 13 minutes by Cole Palmer into the game, despite having the most ball possession and good shots on target, because judging from the current live performance, no doubt this game is truly likely to end draw with at least one goal each (i.e BTTS). However, let's see what the outcome of the second half will look like, because if Chelsea falls to win this match and draws with Bournemouth tonight and Arsenal goes over to win their forthcoming match between Tottenham, thou they will remain 4th on the league table, the gap difference will be much.