He most likely was having a reoccurring nightmare of last season where he set a Detroit record of being the only Red Wing to start the season and play the most games without scoring a goal - a span of 79 contests.
Sheahan also set the NHL record of being the only forward with at least 100 shots on net to begin the season without a goal.
Yet, most NHL observers look at Sheahan's season as an anomaly. During the hoopla of last year's trade deadline speculation, it was widely reported Sheahan was one of the few Wings players who received several inquiries about his availability.
Up until last season, Sheahan was a highly regarded third-line center who had some defensive prowess to his game and who could also chip in double-digit goals.
He's a big man at 6-foot-3 and weighs 226 pounds. Though he is not overly physical, he uses his size to his advantage, which is why many believe he will regain the form he had when the Wings rewarded him with a two-year contract worth $4.15 million in June of 2016, with a cap hit of $2.075 million.
Sheahan's in the last year of his deal and could become a restricted free agent (RFA) at the end of this upcoming season. But the Wings and Sheahan are hoping a fruitful 2017-18 campaign will reestablish Sheahan as part of the Wings' future.
2 - Total number of goals Sheahan scored last season. Both tallies came on April 9 against New Jersey, which was the final Red Wings game at Joe Louis Arena. In a miserable season, Sheahan has the distinction of scoring the last goal ever in the history of the Joe. His two goals were a career low; prior to last year's 79-game drought, Sheahan scored 13 goals in 2014-15 and a career-best 14 goals in 2015-16.
11 - Sheahan chipped in 11 assists last season, which ties his career low. He had 11 assists during the 2015-16 season. His career best was 23 helpers in 2014-15.
13- Until last year, Sheahan's point totals the previous three seasons were 24, 36 and 25, respectively. Thirteen points was obviously a career low.
29- In a year where the bottom fell out, Sheahan's minus-29 was a career low. He is a minus-32 for his career.
250 - On January 24 in Boston, Sheahan played in his 250th career game, a 4-3 overtime loss to the Bruins.
50- Sheahan recorded his 50th career assist on October 17 against the Ottawa Senators at the Joe. Detroit blasted the Senators, 5-1, with Mike Green getting his first career hat trick. Sheahan assisted on Green's third goal.
7- Along with Justin Abdelkader, Sheahan's seven hits in one game led the Red Wings. Abdelkader had seven hits in one game twice during the season - on October 29 in a 1-0 loss to Boston at the Joe and on March 26 in a 3-2 overtime victory against the Wild in Detroit. Sheahan had seven hits in one game on April 1 versus the Toronto Maple Leafs at the Joe, a game the Wings lost, 5-4.
13:58- His average ice time last season, the lowest of his career. Sheahan's career average ice time is 14:49; his career best is 15:39, which he achieved during the 2014-15 season.
50.6- Sheahan's face-off win percentage, which was a career high. His career face-off win percentage is 48.8%.