Chemistry class was the first order of business as the Senators hit the ice Thursday morning.

While there are 55 players in camp a lot of eyes will be on centre Jason Spezza along with wingers Milan Michalek and Bobby Ryan as the Senators officially start to prepare for their season opener Oct. 4 against the Sabres.

Since Michalek and Spezza have played together since the former arrived in a trade with San Jose Sharks four years ago the question is whether Ryan will be a good fit on the right side after being brought in from the Anaheim Ducks.

Spezza Ryan Michalek and the Senators hope so.

“Just playing together and skating to get familiar with each other” said Spezza when asked what it takes to develop togetherness. “There’s no real rhyme or reason why you have chemistry with a guy.

“You just feel each other you just learn where each other goes. It’s not something that can really be forced either. The more we play together the more familiar we’ll get and we’ll figure out if our games mesh well.”

After being dealt to Ottawa in July Ryan 26 declared he was looking forward to getting the chance to play with Spezza. It didn’t take long for Ryan’s wish to come true as they were side-by-side at the Bell Sensplex Thursday.

“I think we play a lot alike” said Ryan. “Outside of the fact that he makes plays and I shoot we both kind of like the puck in the same areas and I felt we’d cycle the puck really well together.

“We’re both strong with the puck down low. I think when you can generate zone time you can generate chances. If him and I can spend some time in the zone together we’d be able to find openings.”

Spezza said camp will be spent trying to figure out the way Ryan fits into the picture with Michalek.

“The game nowadays you have to be able to get up and down the ice well” said Spezza. “To have three guys that can make plays and handle pucks is a big advantage.