F.C. Gifu (Japan) After finishing his college career, Knotek was selected to attend the
United Soccer League's 2011 combine. His performance earned him a trial with
F.C. Gifu in the
J. League Division 2. After a month on trial, Knotek chose to leave due to the escalating
Fukushima Daiichi nuclear disaster that occurred while he was on trial.
Dayton Dutch Lions (USA) Later in 2011, Knotek was selected by the
Dayton Dutch Lions as the #10 for upcoming 2012 United Soccer League season. In 2012, the Dutch Lions did not have much success in the United Soccer League, but they did manage quarter final run 2012
Lamar Hunt U.S. Open Cup before eventually losing to the eventual champions
Sporting Kansas City. During this year Knotek was honored as part of the United Soccer League's team of the week on May 15 and July 24 in addition to one honorable mention on May 22. Knotek re-signed for the Dutch Lions in 2013, but, after starting the first two games, his season was ended short by an injury.
Bridges FC (USA) / Palloseura Kemi Kings (Finland) After a full recovery, Knotek trained with The Dayton Dutch Lions followed by the renowned Chicago program, Bridges FC; a program that helps showcase players to eventually sign in Europe. During the second transfer window, Knotek signed with the
Palloseura Kemi Kings, who were at the top of the table in the
Kakkonen Pohjoinen (Northern). The Palloseura Kemi Kings went on to win the league and also win their promotion playoff into the
Ykkönen.
Närpes Kraft Fotbollsförening (Finland) After a successful trial, Knotek was signed, at the time, as the only Non-
European Union player for
Närpes Kraft Fotbollsförening. He signed as a central midfielder, but spent time on the outside and at wingback as well. Knotek earned individual prizes for his performances both at home and on the road; all in different positions.
Bridges FC (USA) / FC Linköping City (Sweden) After declining offers/trials overseas for various reasons, Knotek spent the first half of the season training with the FC Bridges team/program located in Chicago; while at FC Bridges, Knotek also played numerous friendlies against
United Soccer League teams during this period. During the FC Bridges annual trip to Europe, Knotek left before the scouting period in Sweden to accept a trial with
FC Linköping City where he was offered a contract after attending their mid-season training camp and performing well in his test game. Once the paperwork was cleared, Knotek started every game relevant to promotion for
FC Linköping City. He played primarily as a holding center midfielder in their 4-2-3-1, but also logged minutes as winger; Knotek logged the second most minutes of any
FC Linköping City field player during his time there in 2016.
FC Linköping City was very successful when Knotek played with a record of 9–2–2 including a couple draws in the promotional qualification phase that ended up knocking them out on points.
2017 FC Linköping City (Sweden) Knotek returned to
FC Linköping City in an effort to help the team promote to Division 1 in 2017. He signed as both a holding midfielder (#6) and a box to box midfielder (#8) with the ability to play as a winger (as he did for a couple games in his first spell with
FC Linköping City.) He started the season as a box to box midfielder and scored the team's first goal of the season in their home opener, but was then moved back to #6 (holding central midfielder) to help solidify a defense recording the fewest goals in the league. It was a prosperous season for both
FC Linköping City and Knotek;
FC Linköping City winning the league and earning promotion with a record of 21 wins, 4 draws, and 1 loss while Knotek was 1 of only 3 players nominated after the season for Midfielder of the League.
2018 FC Linköping City (Sweden) Due to an injury picked up in off-season training, Knotek was forced to miss
FC Linköping City's preseason. After regaining his form, Knotek returned to the squad and was a mainstay in the midfield playing in every match except two due to accumulated yellow cards and a red card suspension. Shortly after the mid-season break, Knotek was offered and accepted a contract from
ŠTK Fluminense Šamorín in the
Slovak 2. Liga.
2018-2019 ŠTK Fluminense Šamorín (Slovakia) Knotek arrived in
Šamorín from
Linköping City in early September missing the first 8 games of the 2018-2019
II. liga's season. He made his home debut playing the full 90 in a 6–0 win over
Žilina B marking ŠTK Fluminense Šamorín's first
clean sheet in the last 10 league matches and biggest win of the season. ==Team Accomplishments==