Both the Arizona Diamondbacks and San Francisco Giants made huge offseason splashes to put them in contention for the National League West pennant, and although the teams are his competitors, Los Angeles Dodgers general manager Farhan Zaidi was impressed with the work they did.

"I tip my cap to those teams," he said on MLB Network Radio on Wednesday. "They both had strong offseasons and they both made their teams a lot better. Our division is going to be more competitive in 2016 ... the bar has definitely been raised in our division and we're going to have to make sure we're not just keeping up, but playing at the top of the division."

The Diamondbacks pried Zack Greinke away from the Dodgers with a monumental six-year deal worth $206.5 million, while adding All-Star righty Shelby Miller via trade.

San Francisco spent a combined $220 million for pitchers Jeff Samardzija and Johnny Cueto in free agency.

With the bar being raised, Zaidi understands the Dodgers may need to make more moves.

"You do want to stick with your plan and make sure you're balancing the present and the future," he explained. "When the bar is raised on the present there is a part of you that has to react and make sure that you're keeping up with what's going on with your competitors."

The Dodgers attempted to make a big offseason splash by trying to acquire closer Aroldis Chapman from the Cincinnati Reds before a domestic abuse incident derailed the trade.

Their offseason has included the signings of right-hander Hisashi Iwakuma and infielder Chase Utley, with southpaw Brett Anderson also accepting a one-year qualifying offer.