Johnson missed Thursday's practice with the stomach flu and is questionable to play Friday against the Devils, Erik Erlendsson of the Tampa Tribune reports. The mumps virus hasn't hit the Lightning yet, but it appears the stomach flu might quickly become a scourge for the team. Radko Gudas previously missed three games with the same condition, and now Johnson is being kept away from the team to prevent further contamination. The Bolts will check in on Johnson on Friday morning before determining his availability for the game later that evening.