A persistent ankle injury, sustained during his second year at Swansea, was to blame for the dip.
Early season highlights, like a goal in the 3-0 away win over Valencia in the Europa League, gave way to frustration as he struggled for first-team appearances.
Michu played only five times after Christmas 2013 and finished a season in which manager Laudrup departed and was replaced by Garry Monk with six goals in 25 matches.
The 1-0 defeat by Hull on 5 April 2014 turned out to be Michu's last game for the Swans.
The one-cap Spain global spent the 2014-15 season on loan with Italian side Napoli as he looked to overcome a reoccurring ankle problem, but he was eventually forced to drop into Spain's fourth tier with Langreo.
The Spaniard most recently played for Spanish Segunda Division side Real Oviedo.
Partly sunny, with highs in the upper 70s — Sunday weather
There's a severe thunderstorm warning for southeastern Jefferson County, southwestern Lewis County and northeastern Oswego County. Those who made a decision to start their weekend getaway at the shore early on Friday were in for a rude awakening.
Auto racing roundup: Newgarden triumphs in Toronto
Schmidt Peterson Motorsports made a driver change this week, removing Mikhail Aleshin from the No. 7 Lucas Oil Honda. In 2015, he was the test and reserve driver at Scuderia Ferrari and then drove a year ago for the new Haas F1 team.