New York Post writer Joel Sherman joined the Dennis & Callahan show with Dale Arnold and Tom Caron filling in Monday morning to discuss the Red Sox-Yankees series, Alex Rodriguez and other baseball news. To hear the interview, go to the Dennis & Callahan audio on demand page.

A-Rod has been under investigation by Major League Baseball for his alleged participation in illegal poker games. Sherman said he does not think Rodriguez should be suspended, but he questioned the choices the player continues to make.

“Alex Rodriguez is a terrible, terrible decision-maker who constantly puts himself in trouble and titillates us and makes us want to figure out how he finally has his ‘gotcha’ moments,” Sherman said. “I don’t think it is going to be playing poker in California.”

The Red Sox took 2-of-3 against the Yankees over the weekend and are 10-2 against them on the year. Sherman said a lot of it has to do with the difference in the team’s starting pitching.

“I don’t think it is a fluke,” he said. “I think that the Red Sox lineup in particular hits the Yankee rotation very well, and I think the Yankees just hit the Red Sox rotation just OK. I think you can see there is a big difference and how the big starters on each team have pitched against the other. [Josh] Beckett pitched another good game last night, I know he didn’t get the win, but he only gave up two runs.”

CC Sabathia has struggled against the Red Sox this year. He is 0-4 with a 7.20 ERA. On Saturday he gave up seven runs in six innings in his team’s 10-4 loss.

“Sabathia is 0-4, the first time a Yankee starter has been 0-4 against the Red Sox since 1975,” Sherman said. “I think the Red Sox lineup poses very specific problems for Sabathia, which is they really grind out at-bats and force him to throw a lot of pitches. Sabathia is a very smart pitcher and knows how to find outs in the lineup, which is often the left-handed hitters in the lineup. Well, the Red Sox left-handed hitters are very good against left-handers.

“You could just see it. CC Sabathia has given up two home runs to left-handed hitters all year, and those were to Adrian Gonzalez and Jacoby Ellsbury. He hadn’t given up a three-hit game to a left-handed hitter since July of last year, Carl Crawford did it on Saturday. It’s a tough one for Sabathia to get through. … It is going to be very difficult for the Yankees to win four times in seven games if CC Sabathia cannot beat the Red Sox.”