The Bruins knew they’d have a pound of flesh to pay when the NHL schedule got heavy in March and April.

As it turned out, it took only a few weeks for the dense thicket of back-to-back games and every other day tilts to take a massive toll: Chris Kelly, David Krejci and Adam McQuaid have all dropped with injuries and both Kelly and McQuaid will be out for the majority of the remaining regular season schedule.

The pressure is mounting on Bruins general manager Peter Chiarelli to get a deal done that will deliver some healthy bodies for Boston, but it’s an extreme sellers’ market to this point in the season. The problem as coined by TSN’s James Duthie: Middle Standings Syndrome (MSS) has trumped most trade conversations to this point in the season.

In other words, nearly every team in the league still things they’re in the playoff hunt.

There isn’t a single club that’s more than three wins out of a playoff spot in the Western Conference, and only Buffalo and Florida have sent up the white flag of surrender in the Eastern Conference. That means Chiarelli and the rest of the NHL GM buyers have to hold firm with their current rosters, and simply play the waiting game for teams to plummet out of contention.

It’s of major inconvenience to a hockey club like the Bruins that could use replacements for injured players now, and it’s a quandary for a team-builder like Chiarelli that prefers to bring in new players well ahead of the trade deadline. That’s something he pulled off two years ago when Tomas Kaberle, Rich Peverley and Kelly all arrived in Boston weeks ahead of the trade deadline. The extra time gave the new players plenty of games/practices to get acquainted with the Bruins way of doing things prior to the grind of the playoffs.