Carlos Martinez requested $4.25 million and was offered $3.9 million by the Cardinals when arbitration figures were exchanged on Friday.
Chris Cotillo of MLB Daily Dish reports that the Cardinals and Carlos Martinez have had "initial conversations" regarding a contract extension.
According to Derrick Goold of the St. Louis Post-Dispatch, the Cardinals and Carlos Martinez have mutual interest in working out a contract extension.
Carlos Martinez came up huge for the Cardinals on Friday by tossing seven scoreless innings in a 7-0 win over the Pirates.
Carlos Martinez logged a quality start in Sunday's loss to the Cubs, allowing just two runs on six hits over his six innings of work.
Carlos Martinez lasted just five frames but notched his 15th win over the season Monday, allowing two runs in a 5-3 victory over the Rockies.
Carlos Martinez gave up four earned runs in six innings Wednesday in a loss to the Cubs.
Carlos Martinez surrendered three runs -- two earned -- in seven innings to beat the Brewers 4-3 on Friday.
Carlos Martinez struggled to corral his stuff in Sunday's 5-2 win over the Reds, walking five and allowing two runs over six-plus innings
Carlos Martinez notched a career-high 13 strikeouts across six innings of one-run ball in Monday's 6-5 victory over the Brewers.
Carlos Martinez held the Mets to one run in eight innings to cruise to a win Wednesday.
Carlos Martinez held the Astros to one run over seven innings Wednesday in the Cardinals' 8-2 rout.
Carlos Martinez allowed three runs over six innings in a no-decision Thursday against the Cubs.
Carlos Martinez allowed seven runs -- six earned -- over five innings in Saturday's loss to the Braves.